Asahi Bellows Unit S brand_Polaroid Attaches easily

Attaches easily

or 6 AA batteries

This Schneider-Kreuznach 90mm f4

The shutter system is still entirely mechanical- there's no place to put a battery even if you wanted to

the viewfinder shade switch is immobile

Asahi Bellows Unit S brand_Polaroid Attaches easilyThe Asahi Bellows Unit S is a tiny, foldable bellows for M42 thread mount cameras and lenses. Provides more than 2x magnification with 55mm or 58mm lenses, according to the on rail scales; should do similar work with other lenses of similar focal length. Smooth geared adjustment, good locks. There is a tripod socket at the camera end, but it's pretty minimalist, so you may want to stick with smaller lenses. But, again, this thing is tiny when it's