Zeiss Ikon Tenax II with 4cm f2 Sonnar brand_Robot This is a focus scope

This is a focus scope for use with darkroom enlargers- essential (or at least extremely useful) to ensure correct focus when printing

MF-4 250-shot back

It's the first true self-contained underwater camera

with old-school Takumar branding

Zeiss Ikon Tenax II with 4cm f2 Sonnar brand_Robot This is a focus scopeThe Zeiss Ikon Tenax II is a compact interchangeable lens leaf shutter rangefinder, smaller than even a Barnack Leica (though it's a bit thicker and definitely weirder). Light haze in the 4cm f2 Sonnar lens, accurate shutter and rangefinder. Film winding and shutter cocking are done with the large lever mounted on the front of the camera. Also, did I mention that this camera takes 24x24mm square photos? Because yeah, it does. Cosmetic condition is