Adapter is sturdy, made of metal. It locks on properly and does not wobble. It allows focus to infinity. Adapter will allow to use Pentax Takumar 67 medium format lenses on Canon EOS R series cameras. Adapter does not have any electronic contacts, so it will not communicate with the camera. You will have to adjust aperture and focus manually. 

Please note that adapter will not fit Canon EOS EF or EF-S cameras. It is made only for Canon EOS R full frame cameras. 

All items come with 90 day money back guaranty. 

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