Mamiya 645
For Mamiya 645, flange focal distance (mm) is 63.30 mm; mount type is SLR; format is 6×4.5 cm; production years is 1975–, verified against its source on 2026-08-13.
- Mount name
- Mamiya 645 verified
- Flange focal distance (mm)
- 63.30 mm verified
- Mount type
- SLR verified
- Format
- 6×4.5 cm verified
- Production years
- 1975– verified
- Throat diameter (mm)
- 62 per graphics.cornell.edu
What the source says
Mamiya 645 | 63.30 mm | SLR | 6×4.5 cm | 1975–
— en.wikipedia.org, retrieved 2026-08-13
Sources disagree
More than one authority states this, and they do not state the same thing. Both are reproduced with the source each came from — deciding between them is yours, not ours.
Flange focal distance (mm)
en.wikipedia.org says flange focal distance (mm) is 63.30 mm, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6×4.5 cm | 1975–
https://en.wikipedia.org/wiki/Flange_focal_distance
graphics.cornell.edu says flange focal distance (mm) is 63.3, as of 2026-08-13.
Mamiya 645 | bayonet | 63.3 | 62 |
https://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
briansmith.com says flange focal distance (mm) is 63.30 mm, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6X4.5 cm
https://briansmith.com/flange-focal-distance-guide/
Mount type
en.wikipedia.org says mount type is SLR, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6×4.5 cm | 1975–
https://en.wikipedia.org/wiki/Flange_focal_distance
graphics.cornell.edu says mount type is bayonet, as of 2026-08-13.
Mamiya 645 | bayonet | 63.3 | 62 |
https://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
briansmith.com says mount type is SLR, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6X4.5 cm
https://briansmith.com/flange-focal-distance-guide/
Format
en.wikipedia.org says format is 6×4.5 cm, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6×4.5 cm | 1975–
https://en.wikipedia.org/wiki/Flange_focal_distance
briansmith.com says format is 6X4.5 cm, as of 2026-08-13.
Mamiya 645 | 63.30 mm | SLR | 6X4.5 cm
Sources
- en.wikipedia.orghttps://en.wikipedia.org/wiki/Flange_focal_distance
- graphics.cornell.eduhttps://www.graphics.cornell.edu/~westin/misc/mounts-by-register.html
- briansmith.comhttps://briansmith.com/flange-focal-distance-guide/