Fotodiox Pro Lens Mount Adapter Compatible with Contax 645 (C645) Mount Lenses to Canon EOS (EF, EF-S) Mount SLR Camera Body - with Generation v10 Focus Confirmation Chip and Built-In Aperture Iris Camera Mount_Pentax Q know as keystoning

know as keystoning

automatic diaphragm

Fotodiox adapters are meant to be taken off and put back on your camera as much as needed while remaining as precise as the day you bought them

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Fotodiox Pro Lens Mount Adapter Compatible with Contax 645 (C645) Mount Lenses to Canon EOS (EF, EF-S) Mount SLR Camera Body - with Generation v10 Focus Confirmation Chip and Built-In Aperture Iris Camera Mount_Pentax Q know as keystoningProduct Highlights: Mounts a Vast Range of Vintage Workhorse Lenses to Canon EOS (EF, EF S) Mount D SLR Cameras Upgraded and Enhanced, Generation v10 Focus Confirmation Chips for Increased Compatibility Enhanced craftsmanship and high tolerance construction for demanding professionals; Infinity Focus or Beyond Guaranteed Precise fit and solid all metal construction with chrome plated brass mounts for secure and solid fit; lens has no play, gap or