Pentax Refconverter M  type_Lens and there is no adapter

and there is no adapter that will make it work

Sliders move smoothly and lock securely

with minor cosmetic wear

4k video capability

everything is excellent: Shutter speeds are solid

Pentax Refconverter M &nbsptype_Lens and there is no adapterThe 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