Connect your favorite manual Canon EF lenses to your Ribcage with this EOS to C-Mount adapter. Fully automatic lenses can also be connected but please note that there is no electrical connection via C-Mount, so auto-focus and iris settings will not function. Fully automatic EOS lenses default to having the iris wide open when used with this adapter. 35mm (full frame) lenses will experience a crop factor of 5.7 with the Ribcage.
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