Nikon DB2 eye piece and they did a heck

and they did a heck of a job: along with a very heavy brass body in a grippy matte finish

but it's suitable for any 52mm threaded lens with a focal length of 28mm or above

The dual lens system provides resolution up to 6400dpi

Leitz HOOIV UVa filter for 35/50mm Summicron lenses and others with a 39mm filter thread

but it does what it's gotta do: shoots 6x7cm images on 120 rollfilm

Nikon DB2 eye piece and they did a heckThe Nikon DB2 is an anti cold battery holder for the Nikon F3, FE FM series, the FA, and others. Just screw in the cord where the batteries would normally go and pop a pair of AA batteries into the holder. In addition to extended battery life, you can toss the holder into a warm pocket and minimize the effect of extreme cold weather on the function of your battery powered camera.