Mamiya ZE-2

The shutter does not work, the back is rusty. Generally, I do not put on the site out of order cameras, but I would like to mention a feature of the mount: The diaphragm ring is coupled to nothing in the lens, it gives an indication to the body, and it is it which controls the opening when shooting. It allows the speed priority automatism.

So, it is not possible to control the diaphragm on a lens separated of the camera. Which explains why you cannot find adapters to use the Mamiya E lenses on digital cameras.