K Mount to EF Canon mount lens adapter
thingiverse
Adapter for using K Pentax lenses on Canon EF mount DSLR. Very thin object, yet strong enough to hold small and medium-sized lenses. I haven't tried using it with telephoto lenses. It has a spot where old SMC Pentax Takumar lenses can be fitted without modification (though this might damage full-frame Canon cameras due to the mirror hitting; I don't have one to test). The adapter works perfectly on crop-sensor DSLRs like the EOS 60D or 700D. UPDATE: Improved fitting and focusing at infinity. Printer Settings: Brand: Deltaprintr Printer: Deltaprintr Assembled Rafts: No Supports: Yes Resolution: 0.05-0.1 Infill: 10-20 Notes: Print with nice quality settings, or the adapter won't fit snugly into your camera due to extremely tight tolerances.
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