Asahi Pentax 67 Helicoid Extension Tube telephoto Mamiya built a 6x7 camera

Mamiya built a 6x7 camera with a revolving back for vertical shots

I don’t know why… maybe it’s the Canon equivalent over putting tape over the red dot

6E AF-S Nikkor is an excellent

not mirrorless) mount

The rubber eyecup has not aged well and has a permanent deformation

Asahi Pentax 67 Helicoid Extension Tube telephoto Mamiya built a 6x7 cameraThis helicoid extension tube lets you seamlessly adjust magnification for close up work with your Pentax 67 and nearly any Pentax 67 lens (not included). Less repeatable but more convenient than a "hard" extension tube set, this is a great addition to any Pentax 67 kit. In excellent condition, with case.