Can I use Mamiya RZ 67 lenses on an RB 67? Are they interchangeable?

Question

I'm not sure what the differences are between the two camera bodies. I thought maybe the RZ lenses would be backwards compatible..

Answer 1

You can not use RZ67 lenses on RB67 cameras.

RB lenses will work on both RB and RZ cameras. RZ lenses work only on RZ cameras. The RB 500mm APO and 75mm shift lens will work only on RB SD bodies, or RZs.

KL lenses are optically equivilent to the RZ versions, but cannot work with the RZ meter.

The RZ67 manual states the following:

1. Focusing
RB67 lenses mount directly onto the RZ67; however, the bellows must be extended 7mm in order to focus the lens at infinity (m). Therefore, even when photographing distant subjects, be sure to use the Focusing Screen.

CAUTION: Because of the differences in flange back between the two series of lenses, the Distance Scale of the RZ67 body does not apply when using RB67 lenses.

2. Shutter Speed Selection
When a RB67 lens is mounted on the RZ67 body, use the Shutter Speed Ring of the lens for shutter speed selection. The setting of the camera body Shutter Speed Dial is inconsequential.
The shutter is ****** and released in the same manner as RZ series lenses.

Answer 2

Mamiya Rz67 Manual