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

2015-03-31 4 Dailymotion

Buy from Amazon.com : http://fave.co/1HJmRr2 <br /><br />Sigma EF-610 DG ST Electronic Flash for Sigma Digital SLR Cameras<br /><br />Product Description : <br />is the most powerful one yet now offering a Guide number of 61 which translates into 61m 200ft <br />designed to work with the latest TTL auto exposure systems of all the most popular digital and film SLR cameras <br />The auto zoom function automatically sets the optimum illumination angle in accordance with the lens focal length in a range from 24mm to 105mm <br />Sigma EF-610 DG ST Electronic Flash

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