I bought a Nikon d5100 for the camera. On a cropped matrix, the focal length is 75 mm. For me it is quite convenient. Shows no signs of distortion. When shooting a face for the whole frame, there is no distortion (nosing) as on 35 mm DX-ce. Depth of field is just superb. The back blurs perfectly. With a frag of 1.8, of course, the sharpness is not 100%. But after a few sighting sessions, the photos come out of excellent quality. On light objects slightly chromate, but very weakly. I recommend it as a portrait lens on both DX and FX cameras! Although the panoramas come out well!
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