I switched to canon only because of this glass. Been using Nikon for over 5 years. There were almost all top fixes .. favorite focal length 85mm. After buying 85mm 1.4 from Nikon, there was some disappointment ... There was not enough sharpness on the d800 .. Actually, that's why I decided to switch to kenon. Happy unspeakably. I use a bunch of 85mm 1.2 and 5dm3. The sharpness is incredible. I haven't filmed this yet. I advise you