Mamiya-Sekor C 35mm f3.5 for Mamiya 645 strobe it's the very first camera

it's the very first camera to use 120 rollfilm

this is a pretty nice one

Focal length and aperture are unknown

3/8" fitting at the base for mounting to a support

Nikon PB-6D spacers attach between the rail and the front and rear standards of a Nikon PB-6 bellows

Mamiya-Sekor C 35mm f3.5 for Mamiya 645 strobe it's the very first cameraThe Mamiya Sekor C 35mm f3. 5 is a wide angle lens for Mamiya 645 medium format cameras. Relatively compact, this lens provides the same field of view as a 21mm lens on a full frame or 35mm camera which is very wide! In excellent condition, with clean glass and good function. Includes front and rear caps and carrying case.