The lens ring enables Leica lens fix on Canon EOS camera, including Canon EOS D60, D30, 300D, 20D, 10D, IDs, 1D, 350D 30D and Canon EOS film camera.
It allows R lenses to be used on your Canon EOS in stop down mode.
On most bodies this means you will be able to get manual exposure, aperture priority exposure, the 19/2.8 R, old 21/4 R mirror lockup, 24R, and 35/1.4R can not be used on the Canon, as the deeply recessed rear element will strike the EOS mirror.
This may also be true of other deeply recessed R lenses.
Weight: 51.36 g
Size: 22.214.171.124 cm
1 × EOS Body to Lens Adapter