SMC Pentax-M 50 f1.4 on the R with the Kipon adapter: Canon EOS R Talk Forum: Digital Photography Review
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K&F Concept Pentax K to EOS R Mount Adater, Manual Adapter for Pentax X Lens and Canon EOS R Mount Camera
![Mount Retro Pentax K-mount lenses on your DSLR with the Pentax K-Mount Lens Adapter from Fotodiox - YouTube Mount Retro Pentax K-mount lenses on your DSLR with the Pentax K-Mount Lens Adapter from Fotodiox - YouTube](https://i.ytimg.com/vi/wEEVyb9n6xw/sddefault.jpg)
Mount Retro Pentax K-mount lenses on your DSLR with the Pentax K-Mount Lens Adapter from Fotodiox - YouTube
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