Director Shrhldng-Amendment

Oxford Instruments PLC
13 December 2001


AMENDMENT

Letter to Company Announcements Office

I write with reference to an announcement made regarding Directors Shareholding 
on 1 October 2001 at 07:05 RNS Number 8536K. I regret to say that an error was 
made on both the announcement made on behalf of Dr Andrew Mackintosh and that on
behalf of Mr Martin Lamaison as follows:

Andrew Mackintosh:

The number stated in question 20 regarding the number of shares over which 
options had been granted should have read 333,333 not 378,500. As a consequence 
the total number of shares over options are held following the notification in 
question 22 were also overstated and should have stated 607,987 and not 653,154.

Martin Lamaison:

The number stated in question 20 regarding the number of shares over which 
options had been granted should have read 256,250 not 291,000.  As a consequence
the total number of shares over options are held following the notification in 
question 22 were also overstated and should have stated 435,661 and not 470,411.

From Mrs Della Gorham, Oxford Instruments PLC


                       DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

     OXFORD INSTRUMENTS PLC

2)  NAME OF DIRECTOR

     ANDREW MACKINTOSH

3)  Please state whether notification indicates that it is in respect of
    holding of the shareholder named in 2 above or in respect of a
    non-beneficial interest or in the case of an individual holder
    if it is a holding of that person's spouse or children under the
    age of 18 or in respect of an non-beneficial interest

     DIRECTOR NAMED IN 2 ABOVE

4)  Name of the registered holder(s) and, if more than one holder, the
    number of shares held by each of them. (If notified)

     DIRECTOR NAMED IN 2 ABOVE

5)  Please state whether notification relates to a person(s) connected
    with the Director named in 2 above and identify the connected person(s)


     DIRECTOR NAMED IN 2 ABOVE

6)  Please state the nature of the transaction. For PEP transactions
    please indicate whether general/single co PEP and if discretionary/non
    discretionary

     OPTION GRANTED UNDER 2001 EXECUTIVE SHARE OPTION SCHEME

7)  Number of shares/amount of
    stock acquired

N/A

8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed

N/A

10)  ( N/A %)
    of issued Class



11) Class of security

    ORDINARY SHARES OF £0.05 EACH

12) Price per share

     FOR OPTION PRICE SEE BELOW

13) Date of transaction

     28 SEPTEMBER 2001

14) Date company informed

     28 SEPTEMBER 2001

15) Total holding following this notification

     

16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

    28 SEPTEMBER 2001

18) Period during which or date on which exercisable

    28 SEPTEMBER 2004 - 27 SEPTEMBER 2011

19) Total amount paid (if any) for grant of the option

     NIL

20) Description of shares or debentures involved: class, number.

    ORDINARY SHARES OF £0.05 EACH 333,333 SHARES

21) Exercise price (if fixed at time of grant) or indication that price
    is to be fixed at time of exercise

    158.5 PENCE

22) Total number of shares or debentures over which options held
    following this notification

     607987

23) Any additional information



24) Name of contact and telephone number for queries

    DELLA GORHAM 01865 884657

25) Name and signature of authorised company official responsible for
    making this notification    DELLA GORHAM

    Date of Notification   

                              
                       DEALINGS BY DIRECTORS


1)  NAME OF COMPANY

     OXFORD INSTRUMENTS PLC

2)  NAME OF DIRECTOR

     MARTIN LAMAISON

3)  Please state whether notification indicates that it is in respect of
    holding of the shareholder named in 2 above or in respect of a
    non-beneficial interest or in the case of an individual holder
    if it is a holding of that person's spouse or children under the
    age of 18 or in respect of an non-beneficial interest

     DIRECTOR NAMED IN 2 ABOVE

4)  Name of the registered holder(s) and, if more than one holder, the
    number of shares held by each of them. (If notified)

     DIRECTOR NAMED IN 2 ABOVE

5)  Please state whether notification relates to a person(s) connected
    with the Director named in 2 above and identify the connected person(s)


     DIRECTOR NAMED IN 2 ABOVE

6)  Please state the nature of the transaction. For PEP transactions
    please indicate whether general/single co PEP and if discretionary/non
    discretionary

    OPTION GRANTED UNDER 2001 EXECUTIVE SHARE OPTION SCHEME 

7)  Number of shares/amount of
    stock acquired

     N/A

8)   (N/A %)
    of issued Class



9)  Number of shares/amount
    of stock disposed

     N/A

10)  ( N/A %)
    of issued Class



11) Class of security

    ORDINARY SHARES OF £0.05 EACH
             
12) Price per share

     FOR OPTION PRICE SEE BELOW

13) Date of transaction

     28 SEPTEMBER 2001

14) Date company informed

     28 SEPTEMBER 2001

15) Total holding following this notification



16) Total percentage holding of issued class following this notification



     IF A DIRECTOR HAS BEEN GRANTED OPTIONS BY THE COMPANY PLEASE
                    COMPLETE THE FOLLOWING BOXES

17) Date of grant

    28 SEPTEMBER 2001

18) Period during which or date on which exercisable

    28 SEPTEMBER 2004 - 27 SEPTEMBER 2011

19) Total amount paid (if any) for grant of the option

     NIL

20) Description of shares or debentures involved: class, number.

    ORDINARY SHARES OF £0.05 EACH, 256,250 SHARES

21) Exercise price (if fixed at time of grant) or indication that price
    is to be fixed at time of exercise

    158.5 PENCE

22) Total number of shares or debentures over which options held
    following this notification

     435,661 SHARES

23) Any additional information



24) Name of contact and telephone number for queries

    DELLA GORHAM 01865 884657

25) Name and signature of authorised company official responsible for
    making this notification    DELLA GORHAM

    Date of Notification