## Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras

Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras

Sigma EF-610 DG ST Electronic Flash for Pentax Digital SLR Cameras

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• is the most powerful one yet, now offering a Guide number of 61 which translates into 61/m (200/ft)
• designed to work with the latest TTL auto exposure systems of all the most popular digital and film SLR cameras
• The auto zoom function automatically sets the optimum illumination angle in accordance with the lens' focal length in a range from 24mm to 105mm
• Sigma EF-610 DG ST Electronic Flash

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Sigma introduces EF-610 DG Super flash : Digital Photography Review Photokina 2010: Sigma has announced two flashes, the first of which is the EF-610 DG Super. This adds advanced features such wireless TTL and modelling flash to the