Sigma Lenses for the Nikon F-mount.
www.nikonforums.com www.nikonforums.com...ccs/4c29-sigma-lenses/
The Third Party Lens Talk forum, the place to discuss interchangeable Lenses from manufacturers such as Sigma, Tokina, Tamron, Samyang and Zeiss. Please do not use this forum ...
www.dpreview.com www.dpreview.com/feeds/forums/1043
Discussion about the optical quality of Lenses as well as picture quality of cameras. This will hopefully help us all make better decisions when purchasing new Lenses/cameras....
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