Buy from Amazon.com : http://fave.co/1AMRN17 <br /><br />Sigma EF-610 DG SUPER Electronic Flash for Sony Digital SLR Cameras<br /><br />Product Description : <br />Powerful light output with a Guide number of 200 <br />Illumination covers a focal length from 24mm to 105mm Also covers 17mm when the built in Wide Panel is used <br />Advanced features such as modeling flash and wireless TTL flash are included
