by Bart Arondson

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Nikon DSLRs do not play well with M42 lenses, as flange focal distance (46.5 mm) of Nikon F-mount is longer than on the original M42 cameras (45.46 mm). The lens was designed to sit closer to imaging plane (film) than it can physically reach on your DSLR's body, and this robs the possibility of focusing anywhere near infinity; the lens can be focused only in ...


In manual mode I can not select the aperture but only shutter speed and exposure. That's correct. The M42 mount doesn't have any provisions for the lens to interact with the camera in either direction, so shutter speed and sensor sensitivity (ISO) are the only things on the body you'll be able to adjust. Aperture is, obviously, on the lens. The ...

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