RZ67 50mm f/4.5 Z Lens: Damaged Cemented Rear Element
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
Mamiya RZ67 50mm f/4.5 Z lens damage. Photos show the damage done to one of the cemented rear elements. The third photo is at 35x magnification and the fourth photo is at 20x. Really quite interesting patterns but not ideal if you want to make good images with a lens. This particular lens came from a humid island located in the Pacific Ocean. My advice would be to not purchase lenses with so called “haze” as it is often fungus or separation that can irrevocably damage the glass/coating. Or be quite costly to re-cement or re-coat. In this case, I had a replacement element group. Years ago when these were very expensive lenses (and Mamiya offered a leasing arrangement on their cameras) my cost for a lens element set was close to $600.
