63.30 mm
Flange focal distance
1975
Introduced
SLR
System type
0
Lenses in our database
Mount facts#
- Mount
- Mamiya 645
- Maker
- Mamiya
- Type
- SLR
- Flange focal distance
- 63.30 mm
- Formats
- 6×4.5 cm
- Electronic contacts / AF
- No (mechanical / manual)
- Production
- 1975–
About the Mamiya 645#
Medium-format SLR mount, also used by Phase One bodies.
Mamiya 645 cameras#
Adapting basics#
A lens can be adapted with simple tube spacers when its flange distance is longer than the camera's. With 63.30 mm, Mamiya 645 lenses can in principle go on bodies with shorter flanges such as Ricoh 126C-Flex, Hasselblad H, Mamiya 7, Vivitar TX, Mamiya 6, T-mount (T2). Bodies with this mount can take lenses from longer-flange systems such as Zenza Bronica ETR, Pentax 645, Rollei 6×6 (SL66/SLX), Pentacon Six, Hasselblad V, Kowa Six/Super 66, Kiev 88 / Salyut, Hasselblad 1000F & 1600F.
Sources & licences#
- Wikipedia: Flange focal distance — CC BY-SA 4.0
- Lensfun mount compatibility data — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources