Nippon Kogaku 55mm f3.5 Micro-Nikkor with M tube  type_Tripod Head this adapter provides a 180-degree

this adapter provides a 180-degree diagonal angle of view with pretty decent image quality

Imagine that you have three camera-mounted strobes

But it is just back from a full professional CLA and all functions are excellent

and multiple metering modes (including spotmetering)

5 Nokton lens

Nippon Kogaku 55mm f3.5 Micro-Nikkor with M tube &nbsptype_Tripod Head this adapter provides a 180-degreeNippon Kogaku 55mm f3. 5 Micro Nikkor lens in excellent condition, with very minor cosmetic wear, minor internal dust. Includes the M extension tube for 1: 1 magnification (the lens by itself provides 1: 2 magnification.) This is a pre AI lens, so check your cameras manual for compatibility.