Fujian 35mm f1.7 - Can you use a CCTV lens?
Let me get this straight right away: no, you can't use this lens on your reflex and it doesn't cover full frame. The Fujian 35mm f1.7 is a CCTV C-mount lens, meaning that is made to be used on security cameras. Chances are, in fact, that you might have seen a lens like this at your bank or something like that. But here comes the beauty of APS-C mirrorless cameras: you can adapt basically anything. The C mount is a type of lens mount found on 16mm movie cameras, microscopes and security cameras and lenses for this mount are build to cover 8 and 16mm film and small sensors, mostly under 1 inch. The flange distance is 17.526mm, shorter than Fuji X, Canon EF-M, Sony E and micro four thirds, but they can easily be used with and adapter. So, what about the lens itself? Well, first of all, it's actually made of nothing but metal and glass, making it quite hefty for the size, with a weight of roughly 150 grams and a length of 50mm; surprisingly for such a cheap len...