Canon R

Sold by Canon.

Flange focal distance

42 mm

Measured from Canon R lens mount, which describes the mount this one is a variant of and not this one.

Canon's first SLR mount: breech-lock, introduced March 1959 with the Canonflex, replaced by the FL in 1964. It is here because the Canonflex was filed under `leica-r`, whose spellings included the bare `R mount` — and the Canonflex infobox says `[[R mount]]`, a redlink. The join was a correct reading of a wrong claim, so the claim is what was withdrawn: neither mount answers to `R mount` now. `Wikipedia:Lens mount` does not list this mount at all, so the authority could not have found this; the two records colliding on one spelling is what did. **Not the Canon RF mount.** That one is the 2018 full-frame mirrorless mount — 20 mm flange, twelve electrical pins — and it is digital-only, so it is deliberately absent from a library of film equipment, as the Leica S and Hasselblad X systems are. Wikipedia opens `Canon R lens mount` with a hatnote telling the two apart, which is the note this record was missing: every lens filed here dates from 1959 to 1963.

Also written Canon R lens mount.

Cameras

• Canon Canonflex

Lenses

• Canon R 1000mm f/11
• Canon R 100mm f/2
• Canon R 100mm f/3.5 (I)
• Canon R 100mm f/3.5 (II)
• Canon R 135mm f/2.5
• Canon R 135mm f/3.5 I
• Canon R 135mm f/3.5 II
• Canon R 200mm f/3.5
• Canon R 300mm f/4
• Canon R 35mm f/2.5
• Canon R 400mm f/4.5
• Canon R 50mm f/1.8 I
• Canon R 50mm f/1.8 II
• Canon R 50mm f/1.8 III
• Canon R 55–135mm f/3.5
• Canon R 58mm f/1.2
• Canon R 600mm f/5.6
• Canon R 800mm f/8
• Canon R 85mm f/1.8
• Canon R 85mm f/1.9