Pentax Refconverter M lens mount_Contax/Yashica Selenium light meters usually work

Selenium light meters usually work best in normal-to-high lighting

Mamiya 645AFDII medium format body with a 645 AF 80mm f2

with clean optics and excellent function

Don’t buy this if you want edge-to-edge clinical sharpness

Pentax Refconverter M lens mount_Contax/Yashica Selenium light meters usually workThe Pentax Refconverter M sounds like it does something really fancy, but it's a pretty standard 90 degree magnifying viewfinder. That's good, though! These are useful tools for macro or copystand work, with switchable 1x or 2x magnification. This Refconverter is designed to mount to Pentax M series cameras, which includes the ME MX (and many digital SLRs.) It won't fit the K1000. Spotmatic, or their derivatives. In excellent condition, with case and