Sample Business Contracts


California-San Francisco-582 Market Street Lease - Niantic Corp. and Finisar Corp.

Lease Forms

  • Start a state-specific lease for the rental of commercial property. Specify the term and rent due, as well as whether the landlord or tenant is responsible for property taxes, insurance, and maintenance and repairs.
  • When a tenant vacates commercial property before the lease term has expired, it may be able to rent the premises to a third party. The tenant would be the sublessor and the third party would be the sublessee. Besides preparing a sublease, both parties will want to review the provisions for assignment or subletting in the original lease agreement between the landlord and the sublessor.
  • Tenants of residential property should prepare a sublease agreement if they are seeking to sublease a room or the entire apartment or house to a third party. All parties should review the original lease agreement to see if there are any restrictions on subletting or assigning the premises.
  • Triple net leases are a type of commercial leases where the tenant has to pay for property taxes, insurance, utilities, and maintenance, in addition to the monthly rent.
  • When renting an office space, tenants should understand the amount of the rent and duration of the lease. Other important terms include whether the space can be subleased, which parties are responsible for maintenance, and whether any furniture and furnishings will be provided.


                               THE HOBART BUILDING
                                OFFICE LEASE FORM

of the Building Owners and Managers Association of San Francisco

                                     Parties

         This Lease, made this 17th day of December, 1996, between Niantic
Corporation, Landlord, and Finisar Corporation, Tenant.

                               W I T N E S S E T H

         1.   PREMISES. Landlord hereby leases to Tenant and Tenant hereby
hires from Landlord those certain premises approximately 468 rentable square
feet (hereinafter called "premises") outlined in red on EXHIBIT A attached
hereto commonly known as Suite 609-610 and by this reference made a part
hereof, said premises being situated on the 6th floor of that certain
building (hereinafter called "building") known as 582 Market Street, San
Francisco, California.

         Said letting and hiring is upon and subject to the terms, covenants
and conditions herein set forth and Tenant covenants as material part of the
consideration for this Lease to keep and perform each and all of said terms,
covenants and conditions by it to be kept and performed and that this Lease
is made upon the condition of such performance.

         2.   PURPOSE. The premises shall be used for general office purposes
and for no other use or purpose without the prior written consent of Landlord.

         3.   TERM. The term of this Lease shall be for one (1) year,
commencing on the 23rd day of December, 1996, and ending on the 22nd day of
December, 1997 (the "Lease Term").

         4.   POSSESSION. If Landlord, for any reason whatsoever, cannot
deliver possession of the said premises to Tenant at the commencement of the
term hereof, this Lease shall not be void or voidable, nor shall Landlord be
liable to Tenant for any loss or damage resulting therefrom, but in that
event there shall be a proportionate reduction of rent covering the period
between the commencement of the said term and the time when Landlord can
deliver possession. If possession of the premises is not delivered to Tenant
within six months from the scheduled commencement date, this Lease will
terminate. Should Landlord tender possession of the premises to Tenant prior
to the date specified for the commencement of the term, and Tenant accepts
such prior tender, such prior occupancy shall be subject to all terms,
covenants, and conditions of this Lease, including the payment of rent.

         5.   RENT. On or before the first day of each calendar month during
the term hereof Tenant shall pay to Landlord, as minimum monthly rent for the
premises, the sum of $663.00. The minimum monthly rent for any partial month
shall be prorated at the rate of 1/30 of the minimum monthly rent per day.
Said rent shall be paid by Tenant to Landlord, in advance without deduction
or offset, in lawful money of the United States of America at Cushman &
Wakefield, P.O. Box 45257, San Francisco, CA. 94145-0257, or to such other
person or at such other place as Landlord may from time to time designate in
writing.

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         6.   RENTAL ADJUSTMENT.

              (a)  In addition to the monthly rent provided for in Paragraph
5 hereof, Tenant shall pay to Landlord the sums set forth in the following
subparagraphs. Tenant's percentage share as set forth below has been
calculated by dividing the number of square feet of rentable area in the
Premises by the number of square feet of rentable area in the building. In
the event the rentable area of the building is changed, the Tenant's
percentage share shall be appropriately adjusted. Rentable area shall be
based upon the Building Owners and Managers Association International (BOMAI)
standard method of floor measurement for office buildings. Tenant hereby
approves and accepts Landlord's calculation of Tenant's current percentage
share as set forth below.

              (b)  TAX INCREASES AND ASSESSMENTS. Tenant shall pay to
Landlord an amount equal to .50% of any increase in real property taxes and
assessments or other fees or charges of whatsoever kind or character imposed
by a governmental agency which may be levied on the land and building of
which the premises are a part and personal property taxes levied on personal
property of Landlord used in the operation of said land and building above
the amount of such taxes levied and assessed for the fiscal tax year ending
June 30, 1996, either by way of increase in the rate or in the assessed
valuation of said land and building or by imposition of any such charges by
ordinance or statute of any authority having jurisdiction. For the purposes
of the subparagraph (a) real and personal property taxes shall include,
without limitation, taxes of every kind and nature levied and assessed in
lieu of or in substitution for existing or additional real or personal
property taxes on said land and building as well as any form of assessment,
license, fee, levy, penalty, or tax (other than inheritance or estate taxes),
imposed by any authority having the direct or indirect power to tax,
including any city, county, state, or federal government, or any school,
agricultural, lighting, drainage, or other improvement district, as against
any legal or equitable interest of Landlord in the premises or in the real
property of which the premises are a part, or as against Landlord's right to
rent or other income therefrom, or as against Landlord's business of leasing
the premises, and including any and all charges and fees which may be imposed
by the environmental protection agency or other similar governmental
regulatory agency or authority. In addition, Tenant shall pay one hundred
percent (100%) of any increase in taxes or assessments of whatsoever kind and
nature (including, without limitation, all personal property taxes) caused by
improvements or installations made by Tenant to the premises at any time
during the term hereof. In the event said taxes or assessments are charged to
or paid or payable by Landlord, Tenant forthwith upon demand therefore, shall
reimburse Landlord for all amounts of such taxes or assessments chargeable
against Tenant pursuant to this subparagraph (b) and paid by Landlord.

              (c)  OPERATING EXPENSE INCREASES

                   (1.) Tenant shall pay to Landlord, at the times
hereinafter set forth, an amount equal to .50% of any increase in direct
expenses paid or incurred by Landlord on account of the operation or
maintenance of the building above such direct expenses paid or incurred by
Landlord during the Base Year. "Base Year" as used in this subparagraph (b)
shall mean the calendar year 1996. "Direct expenses" as used herein shall
include all direct costs of operation and maintenance as determined by
standard accounting practices as set forth in the Building Owners and
Managers Association International (BOMAI) chart of accounts from time to
time

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and shall include the following by way of illustration but not limitation:
the cost of contesting by appropriate proceeding the amount or the validity
of any of the aforementioned taxes or fees; water and sewer charges;
insurance premiums; license, permit and inspection fees; charges for heat,
light power and steam; janitorial services; labor, supplies; materials,
equipment and tools; and management fees. "Direct expenses" as used herein
shall not include depreciation on the building or equipment therein, interest
or real estate broker's commissions.

                   (2.) The cost of capital improvements made by Lessor to
the Building that reduce other operating expenses or that are required under
any governmental law or regulation that was not applicable to the Building at
the time of substantial shell completion, such cost or allocable portion
thereof to be amortized over such reasonable period as Lessor shall determine
together with interest on the unamortized balance at the rate that was paid
by Lessor on funds borrowed for the purpose of constructing such capital
improvements, or, if Lessor does not borrow such funds, would have been paid
had Lessor borrowed funds for such purpose but in no event shall such
interest rate exceed the maximum rate permitted by law; provided, however,
that Operating Expenses shall not include costs of tenant improvements, real
estate brokers' commissions, or interest and capital items other than those
referred to in clause (2) above. There shall be deducted from Operating
Expenses paid all amounts that have been included in Operating Expenses paid
by any tenant, including Lessee, during the period for which Operating
Expenses are being determined, on account of cost of repairs or extra
services, for which such Tenant is directly responsible.

         Statement of the amount of direct expenses for the preceding
calendar year and the amount of such increase payable by Tenant shall be
determined or estimated by Landlord and shall be given to Tenant on such date
as Landlord shall from time to time determine. All amounts payable by Tenant
as shown on said statement shall be paid by Tenant within the time required
by said statement. It during any such year Landlord shall revise its estimate
of tenant's share of said expenses for said year, Landlord shall advise
Tenant and commencing on the next date payment of additional charges are due,
Tenant shall pay all additional charges based on such revised estimate for
the portion of the year already elapsed and shall commence paying the
additional charges based on such revised estimate for the remainder of such
year.

         7.   SECURITY. Simultaneously with the execution of the lease,
Tenant shall deposit with Landlord the sum of $1,326.00, of which sum $663.00
shall be payment of the first month's rent and the balance thereof, namely,
$663.00 shall be held by Landlord as security for the faithful performance by
Tenant of all the terms, covenants and conditions of this lease. Provided
that at the end of the term Tenant shall have delivered up the Premises to
Landlord, broom clean, and in the same condition as at the commencement date,
reasonable wear excepted, said sum held as security shall be returned to
Tenant. No interest shall be payable thereon and Landlord shall not be
required to keep said sum in a separate account.

         No security or guaranty which may now or hereafter be furnished
Landlord for the payment of the rent herein reserved or for performance by
Tenant of the other covenants or conditions of this Lease shall in any way be
a bar or defense to any action in unlawful detainer, or for the recovery of
the premises, or to any action which Landlord may at any time commence for a
breach of any of the covenants or conditions of this Lease.

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<PAGE>

         8.   USES PROHIBITED. Tenant shall not do or permit anything to be
done in or about the premises nor bring or keep anything therein which will
in any way increase the rate of or affect any fire or other insurance upon
the building or any of its contents or cause a cancellation of any insurance
policy covering said building or contents. Tenant shall not do or permit
anything to be done in or about the premises which will in any way obstruct
or interfere with the rights of other tenants or occupants of the building or
injure or annoy them, or use or allow the premises to be used for any
residential, immoral, unlawful or objectionable purpose, nor shall Tenant
cause, maintain or permit any nuisance in, on or about the premises. No
cooking devices or other odor causing devices, loudspeakers or other similar
device, system or apparatus which can be heard or experienced outside the
premises shall, without the prior written approval of Landlord, be used in or
at the premises. Tenant shall not commit or suffer to be committed any waste
in or upon the premises.

         9.   COMPLIANCE WITH LAW. Tenant shall not use or permit anything to
be done in or about the premises which will in any way conflict with any law,
statute, ordinance or governmental rule, regulation or requirement now in
force or which may hereafter be enacted or promulgated. Tenant, at its sole
cost and expense, shall promptly comply with all laws, statutes, ordinances
and governmental rules, regulations or requirements now in force or which may
hereafter be in force and with the requirements or any board of fire
underwriters or other similar body now or hereafter constituted relating to
or affecting the condition, use of occupancy of the premises, excluding
structural changes not related to or affected by Tenants improvements or
acts. The judgement of any court of competent jurisdiction or the admission
of Tenant in an action against Tenant, whether Landlord be a party thereto or
not, that Tenant has violated any law, statue, ordinance or governmental
rule, regulation or requirement shall be conclusive of that fact as between
Landlord and Tenant.

         10.  ALTERATIONS. Tenant shall not make or suffer to be made any
alterations, additions or improvements to or of the premises or any part
thereof without the written consent of Landlord first had and obtained. Any
alterations, additions, or improvements to or of said premises, including
without limitation any partitions, movable or otherwise, and all carpeting,
shall at once become a part of the realty and belong to Landlord. Movable
furniture, equipment and trade fixtures shall remain the property of Tenant.
If Landlord consents to the making of any alterations, additions or
improvements to the premises by Tenant, the same shall be made by Tenant at
Tenant's sole cost and expense and any contractor or person selected by
Tenant to make the same must first be approved of in writing by Landlord.
Upon the expiration or sooner termination of the term Tenant, upon demand by
Landlord, at Tenant's sole cost and expense, forthwith and with all due
diligence shall remove any alterations, additions or improvements made by
Tenant designated by Landlord to be removed, and Tenant, forthwith and with
all due diligence, at its sole cost and expense, shall repair any damage to
the premises caused by such removal.

         11.  REPAIR. By entry hereunder upon the commencement of the term
hereof, Tenant accepts the premises as being in good, sanitary order,
condition and repair. Tenant, at Tenant's sole cost and expense, shall keep
the premises and every part thereof in good condition and repair, damage
thereto by fire, earthquake, act of God or the elements not caused by
Tenant's negligent or willful act excepted, Tenant hereby waiving all rights
to make repairs at the expense of the Landlord as provided by law, statute or
ordinance now or hereafter in effect. Upon the

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<PAGE>

expiration or sooner termination of the term hereof, Tenant shall surrender
the premises to Landlord in the same condition as when received ordinary wear
and tear and damage by fire, earthquake, act of God or the elements excepted,
unless caused by Tenants negligent or willful act. It is specifically
understood and agreed that Landlord has no obligation and has made no
promises to alter, remodel, improve, repair, decorate or paint the premises
or any part hereof and that no representations respecting the condition of
the premises or the building have been made by Landlord to Tenant except as
specifically set forth in EXHIBIT C - Construction Exhibit attached hereto.

         12.  ABANDONMENT. Tenant shall not vacate or abandon the premises at
any time during the term hereof, and if Tenant shall abandon, vacate or
surrender the premises or be dispossessed by process of law, or otherwise,
any personal property belonging to Tenant and left on the premises shall be
deemed to be abandoned, at the option of Landlord.

         13.  LIENS. Tenant shall keep the premises and the building and the
land upon which the building is situated free from any liens arising out of
any work performed, materials furnished or obligations incurred by Tenant.
Tenant shall in the event of the filing of any such lien, post any bond
required to release the premises therefrom.

         14.  ASSIGNMENT AND SUBLETTING.

              (a)  Tenant shall not mortgage, pledge, hypothecate or encumber
this Lease or any interest therein. Tenant shall not assign this Lease or
sublet or suffer any other person (the agents and servants of Tenant
excepted) to occupy or use the premises, or any part thereof, or any right or
privilege appurtenant thereto without the prior written consent of Landlord
first had and obtained, which consent shall not be unreasonably withheld.
Landlord's consent to one assignment, subleasing or occupancy shall not be
deemed to be a consent to any subsequent assignment, subleasing or occupancy.

              (b)  Provided further and notwithstanding anything hereinbefore
set forth: In the event that at any time or from time to time during the term
of this lease, Tenant desires to sublet all or any part of the Premises,
Tenant shall notify the Landlord in writing (the "Sublet Notice") of the
terms of the proposed subletting, and the area so proposed to be sublet and
shall give Landlord the right to sublet from Tenant such space (the "Sublet
Space") on the same terms as those contained in the Sublet Notice. Such
option shall be exercisable by Landlord in writing for a period of 30 days
after receipt of the Sublet Notice.

         If Landlord fails to exercise its option and Tenant desires to
complete the proposed sublease, Tenant shall deliver an executed copy of such
sublease to Landlord in order to obtain its consent as required in paragraph
14 (a) above. If Landlord consents to sublease, then such sublease shall be
subject to and made upon the following terms:

                   (i)  any such sublease shall be subject to the terms of
this Lease and the term thereof may not extend beyond the expiration of the
term of this Lease;

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                  (ii)  50% of the difference between all sums payable by
subtenant and all rent due hereunder for the sublease premises during the
term of the sublease, less Tenant's reasonable costs of subletting, shall be
payable to Landlord as additional rent hereunder.

                  (iii) no subtenant shall have a right to further sublease
its premises. If Landlord fails to exercise such option, and Tenant fails to
consummate a sublease with a third party within 60 days after the expiration
of Landlord's option period on the same terms and conditions contained in the
Sublet Notice, Tenant shall be required to deliver a new Sublet Notice to
Landlord and comply with the terms and conditions set forth above before any
further subletting shall be permitted.

              (c) Regardless of Landlord's consent, no subletting nor
assignment shall release Tenant of Tenant's obligation or alter the primary
liability of Tenant to pay rent and perform other obligations of tenant under
this lease.

              (d) In no event shall Tenant assign this Lease or sublet the
premises or any portion thereof to any then existing or prospective tenant of
said building.

              (e) Tenant shall pay Landlord's reasonable costs incurred in
connection with Tenant's request to assign this lease or sublet the premises,
regardless whether or not the Landlord consents to the proposed transfer.

         15. INDEMNIFICATION OF LANDLORD. Landlord shall not be liable to
Tenant and Tenant hereby waives all claims against Landlord for any injury or
damage to any person or property in or about the premises by or from any
cause whatsoever and, without limiting the generality of the foregoing,
whether caused by water leakage of any character from the roof, walls,
basement or other portion of the premises of said building or any part
thereof.

         Tenant shall hold Landlord harmless from and indemnify and defend
Landlord against any and all claims or liability for any injury, or damage to
any person or property whatsoever: (1) occurring in, on or about the premises
or any part thereof, and (2) occurring in, on or about any facilities
(including without prejudice to the generality of the term "facilities",
elevator, stairways, passageways or hallways), the use of which Tenant may
have in common with other tenants of the building, when such injury or damage
shall be caused in part or in whole by the act, neglect, default or omission
of any duty with respect to the same by Tenant, its agent, employees or
invitees.

         16.  INSURANCE. Tenant agrees to keep in force during the term
hereof, at Tenant's expense, public liability and property damage insurance
with combined single limits in the amount of not less than one million
dollars ($1,000,000.00). Said policy shall name Landlord as a additional
insured, and shall insure Landlord's contingent liability as respects acts,
or omissions of Tenant, shall be issued by an insurance company licensed to
do business in the state where the premises are located; and shall provide
that said insurance shall not be canceled or amended unless thirty (30) days
prior written notice to Landlord is first given. Said policy or a certificate
thereof shall be delivered to Landlord by Tenant prior to the commencement of
the term and each renewal of such insurance. Tenant hereby waives all rights
of subrogation against

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Landlord to which any insurance carrier may at any time become entitled under
any policy of insurance carried by Tenant.

         17.  UTILITIES. Landlord shall furnish to the premises, during
reasonable hours of generally recognized business days, to be determined by
Landlord, and subject to the rules and regulations of the building, water and
electricity suitable for the use of the premises for general office purposes
and heat required in Landlord's judgement for the comfortable use and
occupation of the premises for such purposes, janitorial service, and
elevator service. Landlord shall not be liable for, and Tenant shall not be
entitled to any abatement or reduction of rent by reason of Landlord's
failure to furnish any of the foregoing when such failure or delay is caused
by accident, breakage, repairs, strikes, lockouts or other labor disturbances
or labor disputes of any character, or is caused directly or indirectly by
the limitation, curtailment, rationing or restrictions on use of water,
electricity, gas or any other form of energy serving the premises or the
building, or by any other cause, similar or dissimilar, beyond the reasonable
control of Landlord. Landlord shall not be liable under any circumstances for
loss of business or injury to property, however occurring, through or in
connection with or incidental to failure to furnish any of the foregoing.
Tenant shall pay and provide for all services and utilities not furnished by
Landlord.

         Tenant will not, without the written consent of Landlord, use any
apparatus or device in the premises which will in any way increase the amount
of electricity, cooling capacity or water usually furnished or supplied for
use of the premises for general office purposes or connect with electric
current, except through existing electrical outlet in the premises, or water
pipes, any apparatus or device for the purpose of using electric current or
water. If Tenant shall require water or electric current in excess of that
customarily furnished or supplied to their tenants of the building for use of
their premises for general office purposes, Tenant shall first procure the
consent of landlord, which Landlord may refuse, to the use thereof and
Landlord may cause an electric current or water meter to be installed in the
premises so as to measure the amount of excess electric current consumed, as
shown by said meters, at the rates charged for such services by the local
public utility furnishing the same, plus any additional expense incurred in
keeping account of the excess electric current or water so consumed.

         18.  PERSONAL PROPERTY AND OTHER TAXES. Tenant shall pay, before
delinquency, any and all taxes levied or assessed and which become payable
during the term hereof upon Tenant's equipment, furniture, fixtures and other
personal property located in the premises, including carpeting installed by
Tenant even though said carpeting has become apart of the lease premises; and
any and all taxes or increases therein levied or assessed on Landlord or
Tenant by virtue of alterations, additions or improvements to the premises
made by Tenant or Landlord at Tenant's request. In the event said taxes are
charged to or paid or payable by Landlord, Tenant, forthwith upon demand
therefore, shall reimburse landlord of all such taxes paid by Landlord.

         19.  RULES AND REGULATIONS. Tenant shall faithfully observe and
comply with the rules and regulations printed on or annexed to this Lease and
all modifications of and additions thereto applicable to all tenants of the
building from time to time put into effect by Landlord of which Tenant shall
have notice. Landlord shall not be responsible to Tenant for the
nonperformance by any other tenant or occupant of the building of any of said
rules and regulations.

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         20.  HOLDING OVER. If Tenant holds possession of the premises after
the term of this lease, Tenant shall, (at option of Landlord to be exercised
by Landlord's giving written notice to Tenant and not otherwise) become a
Tenant from month to month upon the terms and conditions herein specified, so
far as applicable, at a monthly rental of one hundred fifty percent (150%) of
the highest amount of minimum monthly rent paid during the lease term payable
in advance, in lawful money, and shall continue to be such Tenant until
thirty (30) days after Tenant shall have given to Landlord or Landlord shall
have given to Tenant a written notice of intent to terminate such monthly
tenancy. Unless landlord shall exercise the option hereby given him, Tenant
shall be Tenant at sufferance only, whether or not Landlord shall accept any
rent from Tenant while Tenant is so holding over.

         21.  SUBORDINATION. This Lease shall be subject and subordinate at
all times to all ground or underlying leases which may now exist or hereafter
be executed affecting the building and/or the land upon which the building is
situated and to the lien of any mortgages or deeds of trust in any amount or
amounts whatsoever now or hereafter place on or against any ground or
underlying lease without the necessity of having further instruments on the
part of tenant to effectuate such subordination. Notwithstanding the
foregoing, Tenant covenants and agrees to execute and deliver, upon demand,
such further instruments evidencing such subordination of the Lease to such
ground or underlying leases and to the lien of any such mortgages or deeds of
trust as may be required by Landlord. Tenant hereby irrevocably appoints
Landlord the attorney in fact of Tenant to execute and deliver any such
instrument or instruments for or in the name of Tenant. In the event of
termination any ground or underlying lease, or in the event of foreclosure or
exercise of any power of sale under any mortgage or deed of trust superior to
this Lease or to which this Lease is subject or subordinate, upon Tenant's
attornment to the Lessor under such ground or underlying lease or to the
purchaser at any foreclosure sale or sale pursuant to the exercise of any
power of sale under any mortgage or deed of trust, this Lease shall not
terminate and Tenant shall automatically be and become the Tenant of said
Lessor under such ground or underlying lease or to said purchaser, whichever
shall make demand therefore.

         22.  ENTRY BY LANDLORD. Landlord reserves and shall at any and all
reasonable times have the right to enter the premises to inspect the same, to
supply janitor service and any other service to be provided by Landlord to
Tenant hereunder, to submit the premises to prospective purchasers or
tenants, to post notices of nonresponsibility, and to alter, improve or
repair the premises and any portion of the building without abatement of rent
and may for the purpose erect scaffolding and other necessary structures
where reasonably required by the character of the work to be performed,
always providing the entrance to the premises shall not be blocked thereby
and further providing that the business of tenant shall not be interfered
with unreasonably. Tenant hereby waives any claim for damages for any injury
or inconvenience to or interference with Tenant's business, any loss of
occupancy of quiet enjoyment of the premises, and other loss occasioned by
such entry. For each of the aforesaid purposes, Landlord shall at all times
have and retain a key with which to unlock all of the doors in, upon and
about the premises excluding Tenant's vaults and safes, and Landlord shall
have the right to use any and all means which Landlord may deem proper to
open said doors in an emergency in order to obtain entry to the premises, and
any entry to the premises obtained by Landlord by any of said means, or
otherwise, shall not under any circumstances be construed or deemed to be a
forcible or unlawful entry into or a detainer of the premises or an eviction
of tenant from the premises or any portion thereof.

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         23.  INSOLVENCY OR BANKRUPTCY. Either (a) the appointment of a
receiver to take possession of all of the assets of Tenant, (b) an assignment
by Tenant for the benefit of creditors, or (c) any action taken or suffered
by Tenant under any insolvency, bankruptcy or reorganization act shall
constitute a breach of this Lease by Tenant. Upon the happening of any such
event this Lease shall terminate five (5) days after written notice of
termination from Landlord to Tenant. In no event shall this Lease be assigned
or assignable by reason of any voluntary or involuntary bankruptcy
proceedings nor shall any rights or privileges hereunder be an asset of
Tenant in any bankruptcy, insolvency or reorganization proceedings.

         24.  DEFAULT. In the event of any breach or default of Lease by
Tenant, then Landlord, besides any other rights and remedies of Landlord at
law or equity, shall have the right either to terminate Tenant's right to
possession of the premises and thereby terminate this Lease or to have this
Lease continue in full force and effect with Tenant at all times having the
right to possession of the premises. Should Landlord elect to terminate
Tenant's right to possession of the premises and terminate this Lease, the
Landlord shall have the immediate right of entry and may remove all persons
and property from the premises. Such property so removed may be stored in a
public warehouse or elsewhere at the cost and for the account of Tenant. Upon
such termination Landlord, in addition to any other rights and remedies
(including rights and remedies under Subparagraphs (1) , (2) and (4) of
Subdivision (a) of Section 1951.2 of the California Civil Code of any
amendment thereto), shall be entitled to recover from Tenant the worth at the
time of award of the amount by which the unpaid rent for the balance of the
term after the time of award exceeds the amount of such rental loss that the
Tenant proves could be reasonably avoided. The worth at the time of award of
the amount referred to in subparagraphs (1) and (2) of Subdivision (a) of
Section 1951.2 of the California Civil Code shall be computed by allowing
interest at the maximum rate allowed by law. The work at the time of the
award of the amount referred to in subparagraph (3) of Subdivision (a)
Section 1951.2 of the California Civil Code shall be computed by discounting
such amount at the discount rate of the Federal Reserve Bank of San Francisco
at the time of the award plus 1%.

         Any proof by Tenant of the amount of rental loss that could be
reasonably avoided shall be made in the following manner: Landlord and Tenant
shall each select a licensed real estate broker in the business of renting
property of the same type and use as the premises and in the same geographic
vicinity and such two real estate brokers shall select a third licensed real
estate broker and the three licensed real estate brokers so selected shall
determine the amount of rental loss that could be reasonably avoided for the
balance of the term of this Lease after the time of award. The decision of
the majority of said licensed real estate brokers shall be final and binding
upon the parties hereto.

         Should Landlord, following any breach or default of this Lease by
Tenant, elect to keep this Lease in full force and effect, with Tenant
retaining the right to possession of the premises (notwithstanding the fact
the Tenant may have abandoned the leased premises), then Landlord, besides
the rights and remedies specified in Section 1951.4 of the California Civil
Code and all other rights and remedies Landlord may have at law or equity,
shall have the right to enforce all of Landlord's rights and remedies under
this Lease, including but not limited to the right to recover the
installments of rent as they become due under this Lease. Notwithstanding any
such election to have this Lease remain in full force and effect, Landlord
may at any time thereafter elect to terminate Tenant's right to possession of
said premises and thereby terminate this Lease

                                      9
<PAGE>

for any previous breach or default which remains uncured, or for any
subsequent breach or default.

         25.  DAMAGE BY FIRE, ETC. If the premises are or the building is
damaged by fire or other casualty which is covered by insurance, Landlord
shall forthwith repair the same, provided such repairs can be made within
sixty (60) working days from the date of such damage under the laws and
regulations of the state, federal, county and municipal authorities having
jurisdiction thereof, and this Lease shall remain in full force and effect
during the making of such repairs, except that Tenant shall be entitled to
apportionate reduction of rent while such repairs are being made if the
damage was not attributable to tenant's negligent or willful act, such
proportionate reduction to be based upon the full extent to which the making
of such repairs shall interfere with the business carried on by Tenant in the
premises. If such repairs are not covered by insurance or cannot be made
within sixty (60) working days from the date of such damage, Landlord shall
have the option either (1) to repair or restore such damage, this Lease
continuing in full force and effect, but the rent to be proportionately
reduced or (2) to give notice to Tenant at any time within thirty (30)
working days after the date of such damage terminating this Lease as of a
date to be specified in such notice, which date shall be not less than (30)
nor more than sixty (60) working days after the giving of such notice. In the
event of the giving of such notice of termination by either Landlord or
Tenant, this Lease and all interest of Tenant in the premises shall terminate
on the date so specified in such notice, and the rent, reduced by any
proportionate reduction based upon the extent, if any, to which said damage
interfered with the business carried on by Tenant in the premises, shall be
paid up on date of such termination. Landlord shall not be liable for or be
required to repair any injury or damage by fire or other cause to the
property of Tenant, or to make repairs or replacements of any panelings,
decorations, railings, floor coverings or any equipment or improvements
installed on the premises by Tenant. Tenant hereby waives any provisions of
law automatically terminating this Lease or otherwise contrary to the
provisions of this paragraph in the event of damage to or destruction of the
promises.

         26.  EMINENT DOMAIN. If all or any part of the premises shall be
taken or appropriated by any public or quasi-public authority under the power
of eminent domain, and such taking will substantially impair Tenant's use of
the premises for more than 90 days, either party hereto shall have the right,
at its option, to terminate this Lease. If all or any part of the building of
which the premises are a part shall be taken or appropriated by any public or
quasi-public authority under the power of eminent domain, Landlord may
terminate this Lease. In either of such events, Landlord shall be entitled to
and Tenant upon demand of Landlord shall assign to Landlord any rights of
Tenant to any and all income, rent award, or any interest therein whatsoever
which may be paid or made in connection with such public or quasi-public use
or purpose, and Tenant shall have no claim against Landlord or the condemnor
for the value of any unexpired term of this Lease. If a part of the premises
shall be so taken or appropriated and neither party hereto shall elect to
terminate this Lease, the rent thereafter to be paid shall be equitably
reduced.

         27.  CLAUSES, PLATS AND RIDERS. Clauses, plats and riders, if any,
signed by Landlord and Tenant and endorsed on or affixed to this Lease are a
part hereof, and in the event of variation or discrepancy the duplicate
original hereof, including such clauses, plats and riders, if any, held by
Landlord shall control.

                                      10
<PAGE>

         28.  SALE BY LANDLORD. In the event of a sale or conveyance by
Landlord of the building, the same shall operate to release Landlord from any
future liability upon any of the covenants or conditions, express or implied,
herein contained in favor of Tenant, and in such event Tenant agrees to look
solely to the responsibility of the successor in interest of Landlord in and
to this Lease. If any security be given by Tenant to secure the faithful
performance of all or any of the covenants of this Lease on the part of
tenant, Landlord may transfer and/or deliver the security to the successor in
interest of Landlord, and thereupon Landlord shall be discharged from any
further liability in reference thereto. Except as set forth in this Paragraph
28, this Lease shall not be affected by any such sale or conveyance.

         29.  ESTOPPEL CERTIFICATES. At any time and from time to time, upon
not more than ten (10) days prior request by Landlord, Tenant shall execute,
acknowledge and deliver to Landlord a statement certifying the date of
commencement of this Lease, stating that this Lease is unmodified and in full
force and effect (or if there have been modifications, that this Lease is in
full force and effect as modified and the date and nature of such
modifications) and the dates to which the rent has been paid, and setting
forth such other matters as may reasonably be requested by Landlord. Landlord
and Tenant intend that any such statement delivered pursuant to this
paragraph may be relied upon by any mortgagee or the beneficiary of any Deed
of Trust or by any purchaser or prospective purchaser of the building.

         30.  RIGHT OF LANDLORD TO PERFORM. All covenants and agreements to
be kept or performed by tenant under any of the terms of this Lease shall be
performed by Tenant at Tenant's sole cost and expense and without any
abatement of rent. If Tenant shall fail to pay any sum of money, other than
rent, required to be paid by it hereunder or shall fail to perform any other
act on its part be performed hereunder, and such failure shall continue for
ten (10) days after notice thereof by Landlord, Landlord may, but shall not
be obligated to, and without waiving and default of Tenant or releasing
Tenant from any obligations of Tenant hereunder, make any such payment or
perform any such other act on Tenant's part to be made or performed as in
this Lease provided. All sums so paid by the Landlord and all necessary
incidental costs, together with interest thereon at the rate of ten percent
(10%) per annum from the day of such payment by the Landlord, shall be paid
to Landlord forthwith on demand, and Landlord shall have (in addition to any
other right or remedy of Landlord) the same rights and remedies in the event
of nonpayment thereof by Tenant as in the case of default by Tenant in
payment of rent.

         31.  ATTORNEY FEES. If either Landlord or Tenant shall obtain legal
counsel or bring an action against the other by reason of the breach of any
covenant or warranty hereof, or otherwise arising out of this Lease, the
unsuccessful party shall pay to the prevailing party reasonable attorney's
fees, which shall be payable whether or not any action is prosecuted to
judgement. The term "prevailing party" shall include, without limitation, a
party who obtains legal counsel or brings an action against the other by
reason of the other's breach or default and obtains substantially the relief
sought, whether by compromise, settlement or judgement.

         32.  SURRENDER OF PREMISES. The voluntary or other surrender of this
Lease by Tenant or mutual cancellation thereof shall not work a merger and,
at the option of Landlord, shall terminate all or any existing subleases or
subtenancies, or at the option of Landlord, may operate as an assignment to
Landlord of any or all such subleases or subtenancies.

                                      11
<PAGE>

         33.  WAIVER. The waiver by Landlord or Tenant of performance of any
term, covenant or condition herein contained shall not be deemed to be a
waiver of such term, covenant or condition or any subsequent breach of the
same or any other term, covenant or condition herein contained. The
subsequent acceptance of rent hereunder by Landlord shall not be deemed to be
a waiver of any preceding breach by Tenant of any term, covenant or condition
of this Lease, other than the failure of Tenant to pay the particular rent so
accepted, regardless of Landlord's knowledge of such preceding breach at the
time of acceptance of such rent.

         34.  NOTICES. All notices and demands which may or are required to
be given by either party to the other hereunder shall be in writing. All
notices and demands by Landlord to Tenant shall be delivered personally or
sent by United States certified or registered mail, postage prepaid, address
to Tenant at the premises, or to such other place as Tenant may from time to
time by like notice designate. All notices and demands by Tenant to Landlord
shall be sent by United States certified or registered mail, postage prepaid,
address to Landlord at Cushman & Wakefield, Attention: Lita Doctolero, The
Hobart Building, 582 Market Street, Suite 1001, San Francisco, CA. 94104 or
such other place as Landlord may from time to time by like notice designate.

         35.  NOTICE TO SURRENDER. At least ninety (90) days before the last
day of the term hereof, Tenant shall give to Landlord a written notice of
intention to surrender the premises on that date, but nothing contained
herein or any failure to give such notice shall be construed as an extension
of the term hereof or as consent of Landlord to any holding over by Tenant.

         36.  DEFINED TERMS AND MARGINAL HEADINGS. The words "Landlord" and
"Tenant", as used herein shall include the plural as well as the singular.
Words used in masculine gender include the feminine and neuter. If there be
more than one Tenant, the obligations hereunder imposed upon Tenant shall be
joint and several. The marginal headings and titles to the paragraphs of the
Lease are not a part of this Lease and shall have no effect upon the
construction or interpretation of any part hereof.

         37.  TIME AND APPLICABLE LAW. Time is of the essence of this Lease
and each and all of its provisions. This Lease shall in all respects be
governed by the laws of the state in which the premises are located.

         38.  SUCCESSORS. Subject to the provisions of Paragraph 14 hereof,
the covenants and conditions herein contained shall be binding upon and inure
to the benefits of the heirs, successors, executors, administrators and
assigns of the parties hereto.

         39.  ENTIRE AGREEMENT. This Lease constitutes the entire agreement
between Landlord and Tenant and no promises or representations, express or
implied, either written or oral, not herein set forth shall be binding upon
or inure to the benefit of Landlord or Tenant. This Lease shall not be
modified by any oral agreement, either express or implied, and all
modifications hereof shall be in writing and signed by both Landlord and
Tenant.

         40.  LATE CHARGE. In the event Tenant shall fail to pay any rents or
sums due hereunder on or before the due date herein provided, then and in
that event the amount so due and unpaid shall bear a late charge equal to
five percent (5%) of the amount due together with

                                      12
<PAGE>

interest accruing from the date due at the maximum interest rate permitted by
law, which late charge and interest shall be payable forthwith upon demand.
(The foregoing shall be in addition to any other right or remedy of Landlord.)

         41.  ADDITIONAL PROVISIONS. The exhibits and addenda listed below
are incorporated by reference in this lease:

              1.   The Rules & Regulations for the Building attached to and
                   made a part of this lease.

              2.   First Addendum to the Lease Agreement.

              3.   EXHIBIT A - Location of the Leased Premises.

              4.   EXHIBIT B - Building Owners and Managers Association
                   International Chart of Accounts.

              5.   EXHIBIT C - Landlord's Construction Obligation.

         IN WITNESS WHEREOF Landlord and Tenant have executed this Lease the
day and year first above written.


NIANTIC CORPORATION                         FINISAR CORPORATION


By:  /s/ Russell Lyman                           /s/ Jerry Rawls
------------------------------              ------------------------------
         Russell Lyman                               Tenant

Date:                                       Date:
     -------------------------                   -------------------------



                                See Your Attorney

This Lease should be given to your attorney for review and approval before you
sign it. BOMA makes no representation or recommendation concerning the legal
effect, legal sufficiency, or tax consequences of this Lease. These are
questions for your attorney.



                                      13
<PAGE>

                  RULES AND REGULATIONS FOR THE HOBART BUILDING
                    ATTACHED TO AND MADE A PART OF THIS LEASE

1.       Except as provided or required by Landlord in accordance with building
         standards, no sign, placard, picture advertisement, name or notice
         shall be inscribed, displayed, printed, painted or affixed by Tenant on
         or to any part of the building or exterior of the premises leased to
         tenants or to the door or doors thereof without the written consent of
         Landlord first obtained and Landlord shall have the right to remove any
         such sign, placard, picture, advertisement, name or notice to and at
         the expense of Tenant. If picture frames, etc are permitted to be hung
         in leased premises, Tenant is responsible for hanging or installing
         them.

2.       Except as provided or required by Landlord in accordance with building
         standards, no draperies, curtains, blinds, shades, screens or other
         devices shall be hung at or used in connection with any window or
         exterior door or doors of the premises.

3.       The bulletin board or directory of the building shall be used primarily
         for display of the name and location of Tenants and Landlord reserves
         the right to exclude any other names therefrom, to limit the number of
         names associated with tenants to be placed thereon and to charge for
         names associated with tenants to be placed thereon at rates applicable
         to all tenants.

4.       The sidewalks, halls, passages, exits, entrances, elevators and
         stairways of the building shall not be obstructed by tenants or used by
         them for any purpose other than for ingress to and egress from their
         respective premises. The halls, passages, exits, entrances, elevators,
         stairways, balconies and roof of the building are not for the use of
         the general public and Landlord in all cases reserves the right to
         control the same and prevent access thereto by all persons whose
         presence, in the judgement of the Landlord, is or may he prejudicial to
         the safety, character, reputation or interest of the building and its
         tenants; provided however, that Landlord shall not prevent such access
         to persons with whom tenants deal in the ordinary course of business
         unless such persons are engaged in illegal activities. No person shall
         go upon the roof of the building unless expressly so authorized by
         Landlord.

5.       Tenants shall not alter any lock nor install any new or additional
         locks or any bolts on any interior or exterior door of any premises
         leased to tenant.

6.       The doors, windows, light fixtures and any lights or skylights that
         reflect or admit light into halls or other places of the building shall
         not be covered or obstructed. The toilet rooms, toilets, urinals, wash
         bowls and other apparatus shall not be used for any purpose other than
         that for which they were constructed and no foreign substance of any
         kind whatsoever shall be thrown or placed therein. The expense of any
         breakage, stoppage or damage resulting from the violation of this rule
         shall be borne by the Tenant who, or whose employees or invitees, cause
         such expense.

                                      1
<PAGE>

7.       Tenants shall not mark, drive nails, screw or drill into the walls,
         woodwork or plaster or in any way deface the building or any premises
         leased to supporting partitions pictures, paintings and other similar
         solely decorative items.

8.       Furniture, freight or equipment of every kind shall be moved into or
         out of the building only at such times and in such manner as Landlord
         shall designate. Landlord may prescribe and limit the weight, size and
         position of all equipment to be used by tenants, other than standard
         office desks, chairs and tables and portable office machines. Safes and
         other heavy equipment shall, if considered necessary by landlord, stand
         on wood strips of such thickness as Landlord deems necessary to
         distribute properly the weight thereof. All damage to the building or
         premises occupied by tenants caused by moving or maintaining any
         property of a tenant shall be repaired at the expense of such tenant.

9.       No tenant shall employ any person, other than the janitor provided by
         Landlord, for the purposes of cleaning the premises occupied by such
         tenant unless otherwise agreed to by Landlord. Except with the written
         consent of Landlord no person shall be permitted to enter the building
         for the purpose of cleaning the same. Tenants shall not cause any
         unnecessary labor by carelessness or indifference in the preservation
         of good order and cleanliness. Landlord shall not be responsible to any
         tenant for loss of property on the premises, however occurring, or for
         any damage to the property of any tenant caused by the employees or
         independent contractors of Landlord or by any other person. Janitor
         service will not be furnished when rooms are occupied during the
         regular hours when janitor service is provided. Window cleaning shall
         be done only at the regular and customary times determined by Landlord
         for such services.

10.      No tenant shall sweep or throw or permit to be swept or thrown any dirt
         or other substance into any of the corridors halls or elevators or out
         of the doors or stairways of the building; use or keep or permit to be
         used or kept any foul or noxious gas or substance; permit or suffer the
         premises occupied by such tenant to be occupied or used in a manner
         offensive or objectionable to Landlord or other tenants by reason of
         noise, odors or vibrations, interfere in any way with other tenants or
         persons having business in the building; or bring or keep or permit to
         be brought or kept in the building any animal life form, other than
         human, except seeing-eye dogs when in the company of their masters.

11.      No cooking shall be done or permitted by tenants in their respective
         premises, nor shall premises occupied by tenants be used for the
         storage or merchandise, washing cloths, lodging, or any improper,
         objectionable or immoral purposes.

12.      No tenant shall use or keep in the building any kerosene, gasoline or
         inflammable or combustible fluid or material or use any method of
         heating or air-conditioning other than such as is supplied by Landlord.

13.      No boring or cutting for telephone or electric wires shall be allowed
         without the consent of Landlord and such wires permitted shall be
         introduced at the place and in the manner described by Landlord. The
         location of telephones, speakers, fire extinguisher and all other
         office equipment affixed to premises occupied by tenants shall be
         subject to the

                                      2
<PAGE>

         approval of Landlord. Each tenant shall pay all expenses incurred in
         connection with the installation of its equipment, including any
         telephone and electricity distribution equipment.

14.      Upon termination of occupancy of the building, each tenant shall
         deliver to Landlord all keys furnished by Landlord, and any
         reproductions thereof made by or at the direction of such tenant, and
         in the event of loss of any keys so furnished shall pay Landlord
         therefore.

15.      No tenant shall affix any floor covering in any manner except as
         approved by the Landlord. The expense of repairing any damage caused by
         removal of any such floor covering shall be borne by the tenant by
         whom, or by whose contractors, employees or invitees, the damage shall
         have been caused.

16.      No mail, furniture, packages, supplies, equipment, merchandise or
         deliveries of any kind will be received in the building or carried up
         or down in the elevators except between such hours and in such
         elevators as shall be designated by Landlord.

17.      On Sundays and legal holidays and between the hours of 6:00 pm and 8:00
         am access to the building may be refused unless the person seeking
         access is known to the person charged with responsibility for the
         safety and protection of the building and has a pass or is properly
         identified. In no case shall Landlord be liable for any loss or damage
         for any error with respect to the admission to or exclusion from the
         building of any person. In case of invasion, mob, riot, public
         excitement or other commotion and at such times as Landlord deems
         necessary for the safety and protection of the building, its tenants
         and all property located therein, Landlord may prohibit and prevent
         access to the building by all persons by any means Landlord deems
         appropriate.

18.      Each tenant shall see that the exterior doors of its premises are
         closed and securely locked on Sundays and legal holidays and not later
         than 6:00 pm of each other day. Each tenant shall exercise
         extraordinary care and caution that all water faucets or water
         apparatus are entirely shut off each day before its premises are left
         unoccupied and that all electricity or gas shall likewise be carefully
         shut off so as to prevent waste or damage to Landlord or to other
         tenants of the building.

19.      Landlord may exclude or expel from the building any person who, in the
         judgement of Landlord, is intoxicated or under the influence of liquor
         or drugs, or who shall in any manner do any act in violation of any of
         the rules and regulations of the building.

20.      The requirements of tenants will be attended to only upon application
         to Landlord at the office of the building. Employees of Landlord shall
         not perform any work outside of their regular duties unless under
         special instructions from Landlord, and no employee of Landlord shall
         be required to admit any person (Tenant or otherwise) to any premises
         in the building.

21.      No vending or food or beverage dispensing machine or machines of any
         description shall be installed, maintained or operated upon any premise
         in the building without the written permission of the Landlord.

                                      3
<PAGE>

22.      Landlord, without notice and without liability to any tenant, at any
         time may change the name or the street address of the building.

23.      The word "building" as used in these rules and regulations means the
         building of which a part of the premises are leased pursuant to the
         Lease to which these rules and regulations are attached. Each tenant
         shall be liable to Landlord and to each other tenant of the building
         for any loss, cost, expense, damage or liability, including attorneys
         fees, caused or occasioned by the failure of such first named tenant to
         comply with these rules, but Landlord shall have no liability for such
         failure or for failing or being unable to enforce compliance therewith
         by any tenant and such failure by Landlord or non-compliance by any
         other tenant shall not be a ground for termination of the Lease to
         which these rules and regulations are attached by the Tenant
         thereunder.

24.      Carpet protector pads shall be used by all desk stations.

25.      Per the San Francisco Fire Code, the use of extension cords and
         multiplug adaptors (e.g. cube adaptors, strip plugs or any other device
         which is not listed by a qualified nationally recognized electrical
         testing laboratory and/or does not comply with the Electrical Code) are
         prohibited in highrise buildings. The only type of multiplug device
         allowed is an Underwriters Laboratories listed power strip with either
         a circuit breaker feature or a surge protection feature. Extension
         cords cannot be used in conjunction with these power strips in any
         arrangement whatsoever. Failure to abide by this code can result in a
         Notice of Violation being issued and a fine being imposed.

26.      Smoking is prohibited in the Building including restrooms, lobby area,
         hallways, stairwells, leased premises and any other area within the
         Building. Smoking is defined as inhaling, exhaling, holding, burning
         and/or carrying any lighted tobacco product of any kind.

27.      No tools, dollies, ladders, or any other equipment is available to
         tenant or tenant's contractors for loan.

28.      Landlord or its management agent does not provide services to repair
         tenant furniture or any other tenant possessions.

29.      Any other furniture, or other large items abandoned in a suite or in
         any other part of the building will be disposed of at the expense of
         the tenant. If you are discarding furniture, large items, or an
         unusually large amount of refuse, notification to the Building Office
         is required.

30.      No bicycle, motorcycle, or other vehicle, and no animals or birds shall
         be allowed in the office, halls, corridors, elevators, sidewalks,
         basement or any other part of the Building.

31.      All work to be performed in the building must have prior approval from
         the Landlord. This includes but is not limited to installing,
         repairing, or other work on phones or phone lines, hiring of moving
         company to move furniture or other items in and/or out of the building
         and any type of construction work.

                                      4
<PAGE>

                               THE HOBART BUILDING
                                582 MARKET STREET
                            SAN FRANCISCO, CALIFORNIA

                      FIRST ADDENDUM TO THE LEASE AGREEMENT

The First Addendum to the Lease Agreement made this 17th day of December, 1996
between Niantic Corporation, Landlord, and Finisar Corporation, Tenant, to the
Office Lease Form dated this 17th day of December, 1996, attached hereto.

1.       Pursuant to paragraph 6(b) Tax Increases and Assessments, Tenant's
         proportionate share of all tax increases and assessments shall be paid
         as additional rent. Statements of the amount of tax increases and
         assessments for the preceding calendar year on the amount of such
         increase payable by tenant shall be determined or estimated by Landlord
         and shall be given to Tenant on such date as Landlord shall from time
         to time determine. All amounts payable by Tenant as shown on said
         statement shall be paid by Tenant within the time required by said
         statement. If during any such year Landlord shall revise its estimate
         of Tenant's share of said expenses for said year, Landlord shall advise
         tenant and commencing on the next date payment of additional rent is
         due. Tenant shall pay all additional charges based on such revised
         estimate for the portion of the year already elapsed and shall commence
         paying the additional rent based on such revised estimate for the
         remainder of such year.

2.       Pursuant to paragraph 6(c) Operating Expense increases shall
         specifically include, but not be limited to, heating, ventilation, air
         conditioning (HVAC) repairs and roof repairs.

3.       (a)      Hazardous Materials: Tenant agrees that during the term of
                  this Lease, Tenant shall not be in violation of any Federal,
                  State or Local law, ordinance or regulation relating to
                  industrial hygiene, soil, water, or environmental conditions
                  on, under or about the leased premises, but not limited to,
                  the Environmental laws.

         (b)      Tenant further agrees that during the term of this Lease,
                  there shall be no use, presence, disposal, storage,
                  generation, release, or threatened release of hazardous
                  material on, from or under the Leased Premises.

4.       Waiver of Subrogation. Landlord and Tenant release each other, and
         their respective authorized representatives, from any claims for damage
         to any person or to the Leased Premises and the Building and other
         improvements in which the Leased Premises are located, and to the
         fixtures, personal property, tenant improvements and alterations of
         either Landlord or Tenant, in or on the Leased premises and the
         Building and other improvements in which the Leased Premises are
         located, including loss of income, that are caused by or result from
         risks insured or required under the terms of this Lease to be insured
         against under any property insurance policies carried or to be carried
         by either of the parties.


                                      1
<PAGE>

5.       Landlord's Exculpation. In the event of default, breach, or violation
         by Landlord (which term includes Landlord's partners, coventurers,
         co-tenants, officers, directors, employees, agents or representatives)
         of any Landlord obligations under this Lease, Landlord's liability to
         Tenant shall be limited to its ownership interest in the Leased
         Premises or its interest in the complex, if applicable) or the proceeds
         of a public sale of such interest pursuant to foreclosure of a
         judgement against Landlord. Landlord may, at its option, and among its
         other alternatives, relieve itself of all liability under this Lease by
         conveying the Leased Premises to Tenant. Notwithstanding any such
         conveyance, Tenant's leasehold and ownership interest shall not merge.

         Landlord shall not be personally liable for any deficiency beyond its
         interest in the Leased Premises.

6.       Waiver of California Code Sections. Tenant waives (for itself and all
         persons claiming under Tenant) the provision of Civil Code Sections
         1932 (2) and 1933 (4) with respect to the destruction of the Leased
         Premises Civil Code Sections 1941 and 1942 with respect to Landlord's
         repair duties Tenant's right to repair, Code of Civil Procedure Section
         1265.130, allowing either party to petition the Superior Court to
         terminate this Lease in the event of a partial taking of the Lease
         Premises by condemnation as herein defined, and any right to redemption
         or reinstatement of Tenant under any present or future case law or
         statutory provision (including Code of Civil Procedure Section 473 and
         1179 and Civil Code Section 3275) in the event Tenant is dispossessed
         from the Leased Premises for any reason. This waiver applies to future
         statutes enacted in addition to or in substitution for the statutes
         specified herein.

7.       Pursuant to paragraph 29, Estoppel Certificates. Failure to comply with
         this provision shall be a material breach of this Lease by tenant
         giving Landlord all rights and remedies under paragraph 24 hereof, as
         well as a right to damages caused by the loss of a loan or sale, which
         may result from such failure by Tenant.

8.       Joint and Several Liability. Should Tenant consist of more than one
         person or entity, they shall be jointly and severally liable on this
         Lease.

9.       Light, Air and View. The diminution of light, air or view by any
         structure which hereafter be erected whether or not by Landlord) shall
         not entitle Tenant to any reduction of rent, result in any liability of
         Landlord to Tenant, or in any other way effect this Lease or Tenant's
         obligation hereunder.

10.      Substituted Premises. In the event the Leased premises consist of less
         than five thousand (5,000) square feet, Landlord shall have the right,
         at any time during the Term hereof, upon not less than ninety (90) days
         prior written notice to Tenant, to substitute for the Leased Premises
         such other space in the building as shall be substantially the same
         size as the Leased Premises ("the Substituted Premises"), provided that
         Landlord shall pay all expenses of tenant incidental to Tenant's
         relocation to the Substituted Premises and that Landlord shall improve
         the Substituted Premises for Tenant's use and occupancy at least to the
         same extent as the Leased Premises occupied by Tenant prior to such
         relocation. If tenant does not agree to such relocation then Tenant
         shall give notice of termination of

                                      2
<PAGE>

         this Lease to Landlord within fifteen (15) days of the notice of
         relocation. Upon receipt of such notice to termination, Landlord shall
         have fifteen (15) days to rescind notice of relocation. If landlord
         not rescind the notice of relocation in writing to Tenant within such
         fifteen (15) day period, then the Lease will terminate on the date
         specified in notice of relocation.

11.      Landlord shall have no responsibility for providing to Tenant any
         telephone equipment, including wiring, within the Premises or for
         providing telephone service or connections from the utility to the
         Premises, except as required by law.

         Tenant shall not alter, modify, add to or disturb any telephone wiring
         in the Premises or elsewhere in the Building without the Landlord's
         prior written consent. Tenant shall be liable to Landlord for any
         damage to the telephone wiring in the Building due to the act,
         negligent or otherwise, of Tenant or any employee, contractor or other
         agent of Tenant. Tenant shall have no access to the telephone closets
         within the Building, except in the manner and under procedures
         established by Landlord. Tenant shall promptly notify Landlord of any
         actual or suspected failure of telephone service to the Premises.

         All costs incurred by Landlord for the installation, maintenance,
         repair and replacement of telephone wiring within the Building shall be
         an Operating Expense, as otherwise defined in Section six (6) of this
         Lease, unless Landlord is reimbursed for such costs by other tenants of
         the Building.

         Landlord shall not be liable to Tenant and Tenant waives all claims
         against Landlord whatsoever, whether for personal injury, property
         damage, loss of use of the Premises, or otherwise, due to the
         interruption or failure of telephone services to the Premises. Tenant
         hereby holds Landlord harmless and agrees to indemnify, protect and
         defend Landlord from and against any liability for any damage, loss or
         expense due to any failure or interruption of telephone service to the
         premises for any reason. Tenant agrees to obtain loss of rental
         insurance adequate to cover any damage, loss or expense occasioned by
         the interruption of telephone service.

12.      All other terms and conditions contained in the Lease shall remain in
         full force and effect.

                                      3
<PAGE>

                                    EXHIBIT B

                               THE HOBART BUILDING
                                582 MARKET STREET

                            SAN FRANCISCO, CALIFORNIA

Lessor's operating costs shall include the operating expenses of the building
and its basement. The expense categories shall include, but are not limited to,
those listed below and are shown only by example.

         The wages and salaries of all employees engaged in the operating and
         maintenance of the building, including Employer's Social Security taxes
         and other taxes which may be levied on such wages and salaries;

         All janitorial and office supplies and materials used in the operation
         and maintenance of the building;

         The cost of water and power, heating and lighting for the building;

         The cost of all maintenance and service agreements on equipment,
         including security, window cleaning, elevator maintenance and
         management contract;

         Insurance premiums and;

         All taxes and assessments, and governmental charges, either Federal,
         State, County or Municipal, which are levied on or charged against real
         estate, street lights, personal property or rents, or in the right or
         privilege of leasing real estate or collecting rents therefrom, and any
         other taxes and assessments attributable to the building or its
         operation, excluding, however, Federal & State income taxes.



                                      1
<PAGE>


                                    EXHIBIT C

                               THE HOBART BUILDING
                                582 MARKET STREET
                            SAN FRANCISCO, CALIFORNIA


Specifications for Tenant Improvements included in the Lease for Suite 609 and
610 at the Hobart Building,

1.       Install building standard carpet in Suite 610, to closely match
         existing carpet in Suite 609.



                                      1
<PAGE>

                     FIRST AMENDMENT TO THE LEASE AGREEMENT
                           PERTAINING TO OFFICE SPACE
                      582 MARKET STREET, SAN FRANCISCO, CA


This First Amendment to the Office Lease Form dated December 17, 1996 attached
hereto and made a part hereof, is made by and between Finisar Corporation,
Tenant, and Niantic Corporation, Landlord as of this __ day of October, 1998,
under the following terms sand conditions:

1.       PREMISES
Suites 609/610, comprised of 468 Rentable Square Feet (RSF)

2.       TERM
The amended Lease Term for the premises shall commence November 1, 1998, and
shall terminate October 31, 1999.

3.       RENT
Paragraph 5, Rent, shall be amended to provide for the following rental amounts
due:

November 9, 1998 - October 31, 1999 $858.00

4.       OTHER PROVISIONS
All other terms and conditions of the Office Lease Form dated December 17, 1996
between Finisar Corporation, Tenant, and Niantic Corporation, Landlord, are to
remain in full force and effect.

LANDLORD                               TENANT

NIANTIC CORPORATION                    FINISAR CORPORATION


By:  /s/ Russell Lyman                 By:  /s/ Jerry Rawls
     ----------------------------           ----------------------------
     Russell Lyman, Vice President          Jerry Rawls, President
     and Assistant Secretary


Date:                                  Date:         10/28/98
     ----------------------------           ----------------------------



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