Total Voting Rights

Oxford Instruments plc - Voting Rights and Capital Update

In conformity with the Transparency Directive's transitional provision 6 we
would like to notify the market of the following:

Oxford Instruments plc advises that since 6 May 2008 its capital has increased
by 517 ordinary shares with voting rights.

Therefore, the total number of voting rights in Oxford Instruments plc is
49,387,269.

.

The above figure (49,387,269) may be used by shareholders as the denominator
for the calculations by which they will determine if they are required to
notify their interest in, or a change to their interest in, Oxford Instruments
plc under the FSA's Disclosure and Transparency Rules.

Jo Young

Company Secretarial Assistant

Oxford Instruments plc

TEL: [phone]

4 June 2008