SLR lens mount

Zenza Bronica ETR mount

Everything about the Zenza Bronica ETR: flange focal distance, native lenses, cameras and which adapters keep infinity focus.

69.00 mm
Flange focal distance
1976
Introduced
SLR
System type
0
Lenses in our database

Mount facts#

Mount
Zenza Bronica ETR
Maker
Zenza
Type
SLR
Flange focal distance
69.00 mm
Formats
6×4.5 cm
Electronic contacts / AF
No (mechanical / manual)
Production
1976–2004

Adapting basics#

A lens can be adapted with simple tube spacers when its flange distance is longer than the camera's. With 69.00 mm, Zenza Bronica ETR lenses can in principle go on bodies with shorter flanges such as Contax 645, Mamiya 645, Novoflex [de] A-mount, Ricoh 126C-Flex, Hasselblad H, Mamiya 7. Bodies with this mount can take lenses from longer-flange systems such as Pentax 645, Rollei 6×6 (SL66/SLX), Pentacon Six, Hasselblad V, Kowa Six/Super 66, Kiev 88 / Salyut, Hasselblad 1000F & 1600F, Pentax 6×7.

Sources & licences#

Last updated October 03, 2026 · How we calculate · Sources