**Exhibit 10.2.3**

**THE PERKIN-ELMER CORPORATION****1996 STOCK INCENTIVE PLAN**

**FORM OF INCENTIVE STOCK OPTION****AGREEMENT**

**INCENTIVE STOCK OPTION****AGREEMENT** dated    as of [Grant Date] by and between The Perkin-Elmer Corporation, a New Yorkcorporation (the “Company”), and [Name], a regular salaried employeeof theCompany or one of its subsidiaries (“you”).

***1.  Grant of Option.***The Company hereby grants to you an option (the “Option") to purchase [Total Number of Shares] shares of its Common Stock, par value $1.00 per share (the “Common Stock”), under the terms of The Perkin-Elmer Corporation 1996 Stock Incentive Plan (the “Plan”).

***2.  Purchase Price of Option.***The purchase price of the shares of Common Stock subject to the Option is $[Purchase Price] per share.

***3.  Expiration Date of Option.***The Option will expire as of 12:00 p.m. midnight  (New York time) on [10 Year Anniversary of Grant Date] (the “Expiration Date”), unless it is terminated earlier as provided in this Agreement.

***4.  Exercise.***The Option may be exercised as to one-half of the total number of shares subject to the Option on or after [First Anniversary of Grant Date] and as to the remaining one-half on or after [Second Anniversary of Grant Date].  Except as provided below, the Option may not be exercised unless you are on the date of exercise, and have been at all times from the date of grant to the date of exercise, a regular employee of the Company or one of its subsidiaries.

***5.  Termination of Employment.*** If your employment with the Company or a subsidiary is terminated by you or the Company for any reason other than retirement, disability, or death, you may exercise the Option, to the extent that you would otherwise be entitled to do so at the date of the termination of employment, at any time within 30 days after the date of termination, but not after the Expiration Date.

***6.  Retirement or Disability.***  If you retire at your normal retirement date under the terms of any pension plan provided by the Company or one of its subsidiaries (or earlier with the consent of the Company or such subsidiary), or if you are totally and permanently disabled, the Option may be exercised as to the total number of shares subject to the Option (without regard to the exercise schedule set forth in paragraph 4) at any time within three months after the date of retirement or disability retirement, but not after the Expiration Date.

***7.  Death.***  If you die while employed by the Company or one of its subsidiaries, the Option may be exercised (to the extent that you would have been entitled to do so at the date of your death) by your executor or administrator (or other person at the time entitled by law to your rights under the Option) at any time within one year after the date of death, but not after the Expiration Date.

----

 

***8.  Exercise of Option.***The    Option may be exercised by giving written notice in the form specified by    the Company to the Corporate Secretary at the principal office of the Company    specifying the number of shares of Common Stock to be purchased. However,    the Option may not be exercised as to fewer than 50 shares, or the remaining    shares covered by the Option if fewer than 50, at any one time, and the Option    may not be exercised with respect to a fractional share. The purchase price    of the shares as to which the Option is exercised must be paid in full at    the time of exercise, at your election, (a) in U.S. currency, (b) by tendering    to the Company shares of Common Stock then owned by you having a Fair Market    Value (as defined in the Plan) equal to the aggregate purchase price of the    shares as to which the Option is being exercised, (c) by making an election    to have shares of Common Stock subject to the Option withheld by the Company    (provided that the Option has been held for at least six months), with the    shares withheld having a Fair Market Value equal to the aggregate purchase    price of the shares as to which the Option is being exercised, (d) a combination    of U.S. currency, previously owned shares of Common Stock, and/or share withholding,    with any shares of Common Stock valued at Fair Market Value, or (e) by payment    of such other consideration as the Management Resources Committee of the    Board of Directors (the "Committee") from time to time determines.    For purposes of this paragraph, Fair Market Value will be determined as of    the business day immediately preceding the day on which the Option is exercised.

***9.  Conditions to Exercise.******* The    exercise of the Option within one year following the termination of your    employment is subject to the satisfaction of the conditions that you have    not (a) rendered services or engaged directly or indirectly in any business    which in the opinion of the Committee competes with or is in conflict with    the interests of the Company, or (b) violated any written agreement with    the Company, including, without limitation, any confidentiality agreement.    Your violation of either clause (a) or (b) of the preceding sentence will    result in the immediate forfeiture of any Options held by you. 

***10.  Notice of Transfer of        Shares***.  You will notify the Company in writing immediately in        the event that any shares acquired upon the exercise of the Option are        transferred to a third party prior to [Second Anniversary of Grant Date]        or the first anniversary of the date on which such shares are acquired.

***11.  Rights as a Shareholder.***You will not have any rights as a shareholder with respect to the shares of Common Stock subject to the Option prior to the issuance to you of a certificate for such shares.

***12.  Transferability.***  The    Option may not be transferred other than by will or by the laws of descent    and distribution, and the Option may be exercised, during your lifetime,    only by you or your guardian or legal representative.

***13.  Change of Control.***Subject    to the terms of the Plan, the Option will become immediately exercisable    in full (a) in the event that a tender offer or exchange offer (other than    an offer by the Company) for the Common Stock is made by any "person" within    the meaning of Section 14(d) of the Securities Exchange Act of 1934, as amended,    and not withdrawn within a specified period, or (b) in the event of a Change    in Control (as defined in the Plan). 

-2-

----

 

***14.  No Right to Continued Employment.***  Neither the Option nor this Agreement confers upon you any right to continue to be an employee of the Company or any of its subsidiaries or interferes in any way with the right of the Company or any of its subsidiaries to terminate your employment at any time.  Except as provided in this Agreement, the Option will terminate upon the termination of your employment for any reason.  The Option will not be reinstated if you are subsequently reinstated as an employee of the Company or any subsidiary.

***15.  Compliance with Law.*** No shares of Common Stock will be issued upon the exercise of the Option unless counsel for the Company is satisfied that such issuance will be in compliance with all applicable laws.

***16.  Terms of Plan Govern.***  This Agreement and the terms of the Option will be governed by the terms of the Plan which is hereby incorporated by reference in this Agreement.  In the event of any ambiguity in this Agreement or any inconsistency between the terms of this Agreement and the terms of the Plan, the terms of the Plan will govern.  By your signature below, you acknowledge receipt of the Prospectus for the Plan, including a copy of the Plan, and agree to be bound by all of the terms of the Plan.

***17.  Amendments.***The Option or the Plan may, subject to certain exceptions, be amended by the Committee at any time in any manner.  However, no amendment of the Option or the Plan will adversely affect in any material manner any of your rights under the Option without your consent.

***18.  Governing Law.***This Agreement will be governed by and construed in accordance with the internal laws of the State of Connecticut.

**IN WITNESS WHEREOF,**this Agreement has been duly executed by the undersigned as of the day and year first written above. 

By: __________________________                 Chairman, President and              Chief Executive Officer

****

Accepted and Agreed:

 

__________________________Employee

-3-

----