# M39×26tpi mount — Camera mount flange focal distance and adapter feasibility For M39×26tpi mount, flange focal distance (mm) is 28.80 mm; mount type is Mirrorless; format is 24×36 mm, verified against its source on 2026-08-13. - **Mount name:** M39×26tpi mount _(verified: appears in the quote below)_ - **Flange focal distance (mm):** 28.80 mm _(verified: appears in the quote below)_ - **Mount type:** Mirrorless _(verified: appears in the quote below)_ - **Format:** 24×36 mm _(verified: appears in the quote below)_ ## What the source says > M39×26tpi mount | 28.80 mm | Mirrorless | 24×36 mm ## Source - https://en.wikipedia.org/wiki/Flange_focal_distance 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/).