SIGMA's f/1.8 Constant Aperture!
Thursday, April 18, 2013 at 10:12AM According to Sigma, this is the World's first lens offering an aperture of f1.8 throughout the zoom range. This for DSLR camera's that have the APS-C format. I'm not usually a third party lens guy but this one seem very intrigue. Head over to the link for more information.

via SIGMA
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