Canon R/FL/FD

For Canon R/FL/FD, flange focal distance (mm) is 42; mount type is breech or bayonet; throat diameter (mm) is 48, verified against its source on 2026-08-13.

Mount name: Canon R/FL/FD verified
Flange focal distance (mm): 42 verified
Mount type: breech or bayonet verified
Throat diameter (mm): 48 verified

Sourcegraphics.cornell.edu

Verified2026-08-13

Review by2028-08-12

DatasetCamera mount flange focal distance and adapter feasibility

What the source says

Canon R/FL/FD | breech or bayonet | 42 | 48 |

— graphics.cornell.edu, retrieved 2026-08-13

Source

graphics.cornell.eduhttps://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html

Last verified against source: 2026-08-13. Due for re-check by 2028-08-12. This page as Markdown · OKF bundle · full dataset as JSON.