Mamiya 7 65mm Lens: Full Open Shutter Modification
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
Modifying a Mamiya 7 65mm lens for full open shutter operation.
Since the Mamiya 6/7 lenses have shutters that stay closed normally, they can’t be used as-is for different lens mounts. And, many photographers like the image quality of these lenses. What I have done for many clients is to modify the lens so that the shutter blades are always open. I’ve done it in various ways, in this example, the shutter blades have been removed. My clients deal with the lens mount modification, I just lock the shutter blades open. Also, the cocking lever and rangefinder cam have been removed so as to not interfere with the new lens mount.
