# Contax RF — Camera mount flange focal distance and adapter feasibility

For Contax RF, flange focal distance (mm) is 34.85; mount type is dual bayonet; throat diameter (mm) is 44, verified against its source on 2026-08-13.

- **Mount name:** Contax RF _(verified: appears in the quote below)_
- **Flange focal distance (mm):** 34.85 _(verified: appears in the quote below)_
- **Mount type:** dual bayonet _(verified: appears in the quote below)_
- **Throat diameter (mm):** 44 _(verified: appears in the quote below)_

## What the source says

> Contax RF | dual bayonet | 34.85 | 44 |

## Source

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

Last verified: 2026-08-13. Review by: 2028-08-12.
Part of [Camera mount flange focal distance and adapter feasibility](https://referencesource.org/camera-lens-body-adapter-compatibility/).