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2025
31 posts from 2025.
RB67 127mm C Lens: Delayed Shutter Release from Dried Lubrication
This Mamiya 127mm RB67 C lens arrived in the shop with a very common issue that I find in the Seiko shutters used in the early RB67 lenses, the TLR C…
Mamiya 7: Testing Aperture Priority Auto Exposure
One of the battery of tests that are done on the Mamiya 7/7II on intake is check of the light meter automatic setting. On the Mamiya 7/7II this is an…
Nikkor 300mm f/5.6 Copal 3 Shutter: Oil-Soaked Blades
This Nikkor 300 f/5.6 lens in a Copal 3 shutter arrived with a ridiculous amount of oil on all of the shutter parts. The shutter would not even fire as the…
Mamiya 7II: Replacing Shattered Viewfinder and Frame Finder Glass
This has been a week for replacing broken Mamiya 7 viewfinder glass on a number of bodies. This particular Mamiya 7II was very unlucky, both the viewfinder…
Mamiya 7: Cracked Frame Finder Glass Replaced with Dichroic Glass
This Mamiya 7 came into the shop with a cracked frame finder glass. This is a good time to replace the original style plain groundglass window with the…
Mamiya 7 65mm Lens: Loose Filter Ring Screws
A common issue with the Mamiya 7 lenses is that the filter ring screws become loose. The video shows how this 65mm lens arrived with the front ring loose…
Rodenstock 115mm Grandagon-N: Straightening a Bent Filter Ring
This 115mm Rodenstock 115mm Grandagon -N lens took a hard hit. As seen in the photos, the filter ring absorbed the shock and became quite bent. Even in…