SDI Group Regulatory News (SDI)

SCIENTIFIC DIGITAL IMAGING PLC

("SDI" or the "Company")

(AIM:SDI)

Total Voting Rights

Scientific Digital Imaging plc, the AIM quoted group focused on the application of digital imaging technology to the needs of the scientific community, announces that an allotment of 28,000 ordinary shares in the Company (the "Shares") has been reversed. The Shares were previously allotted in relation to options, held by a former employee, to acquire ordinary shares. However, the Company has now cancelled the allotment and issue of these 28,000 Shares.

Taking into account the cancellation referred to above, as at the date of this announcement the total number of issued ordinary shares in the Company is 27,777,308. The Company does not hold any ordinary shares in treasury and therefore this figure may be used by shareholders in the Company 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, the share capital of the Company under the Financial Conduct Authority's Disclosure and Transparency Rules.

For further information please contact:

Scientific Digital Imaging plc

Mike Creedon - Chief Executive Officer

+44 1223 727144

finnCap

Ed Frisby/Ben Thompson - Corporate Finance

Mia Gardner - Corporate Broking

+44 20 7220 0500

JW Communications

Julia Wilson - Investor & Public Relations

+44 7818 430877

Note to Editors

About Scientific Digital Imaging plc

Scientific Digital Imaging plc (SDI) is focused on the application of digital imaging technology to the needs of the scientific and technology community. Its principal subsidiary is Synoptics Limited, which designs and manufactures special-purpose instruments for use mainly in the life sciences, supplying customers in the academic, research and health sectors. Within Synoptics, the recently formed Synoptics Health division has launched the Synoptics Health ProReveal system. This patented system offers a highly sensitive fluorescence-based test to detect dirty surgical instruments in hospitals and aims to reduce incidences of cross contamination of patients. In addition, under the Atik brand, SDI designs and manufactures high-sensitivity cameras for both astronomical and life science applications.

www.scientificdigitalimaging.com