# Pentacon 6 — Camera mount flange focal distance and adapter feasibility

For Pentacon 6, flange focal distance (mm) is 74.1; mount type is breech lock; throat diameter (mm) is 60, verified against its source on 2026-08-13.

- **Mount name:** Pentacon 6 _(verified: appears in the quote below)_
- **Flange focal distance (mm):** 74.1 _(verified: appears in the quote below)_
- **Mount type:** breech lock _(verified: appears in the quote below)_
- **Throat diameter (mm):** 60 _(verified: appears in the quote below)_

## What the source says

> Pentacon 6 | breech lock | 74.1 | 60 |

## 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/).