Zenza Bronica Revolving Tripod Adapter G format_Digital Medium Format Nikon Nikkor-M 300mm f/9 lens

Nikon Nikkor-M 300mm f/9 lens in excellent condition

While most of these "red curtain" cameras eventually had their original curtains replaced with black

The light meter and shutter speeds are correct

Fully rangefinder coupled

Zenza Bronica Revolving Tripod Adapter G format_Digital Medium Format Nikon Nikkor-M 300mm f/9 lensMamiya built a 6x7 camera with a revolving back for vertical shots; Bronica made this big ol' solid metal tripod mount for their GS 1 that flips the whole camera sideways. It's not the most elegant solution, but it does the job! In excellent cosmetic condition, with light paint wear and a resurfaced camera pad; function is excellent.