← Blog · Archive
2022
81 posts from 2022.

Mamiya 7 150mm Lens: Calibrating the Rangefinder Cam
Servicing a Mamiya 150mm lens for the Mamiya 7. After checking focus on the lens, next stop is checking rangefinder cam movement. Until the rangefinder cam…

Mamiya 7: Bent Rangefinder After an Impact
I did not repair this Mamiya 7. It came in with the complaint that the frame finder marks were not correct for the attached lens and that the rangefinder…

RZ67 Early 1982 Body: Mechanical Release Failure
Servicing a Mamiya RZ67 for a release issue. When these do not allow mechanical release, the problem is quite often an issue with the body not fully…

Mamiya 7 80mm Lenses: Separation and Fungus in the Rear Group
I have had two Mamiya 7 80mm lenses in for service this week and was unable to fully resolve the issues with them. Reason: separation and fungus on the…

Mamiya 6: Replacing Broken Viewfinder Glass
Servicing a Mamiya 6 with a broken viewfinder glass. For some reason, I see more Mamiya 6 cameras with broken finder glass than Mamiya 7. No idea why…

Mamiya C220 After a Fall: Finder Glass and Filter Ring Repair
This Mamiya C220 had a rough time recently . It was sent to me by @sirjakethomas and he told me that during his recent London trip, it had a bit of a fall…

Mamiya 7 and Mamiya 6 Repair Tools
I'm doing some spring cleaning/reorganization so thought it might be a good time to show some of the Mamiya 7 repair tools that I use (all of the items in…

Mamiya 645 1000S: Corroded Battery Compartment and Broken Latch
This 645 1000s came into the shop for the typical slow film counter return and shutter calibration (I have documented the counter return issue on a…

Fuji GS645W and GS645S Wide 60: Similarities and Differences
Servicing two Fuji 645 rangefinder cameras today that share some body traits. This gives me a chance to show some of the similarities and differences…

Mamiya 7 vs 7II: Four Frame Finder Versions Compared
While doing some service on Mamiya7 bodies today I thought it would be a good time to document the differences on the various versions. While officially…

Mamiya Press 100mm f/3.5: Sticking Shutter Cocking Ring
This Mamiya 100mm f/3.5 lens being serviced is for the Press/Universal line of cameras. Typical issue of sticking shutter cocking ring. On opening the…

Mamiya 7 Lenses: Evaluation Process and Testing Steps
These Mamiya 7 lenses were sent in for evaluation and here is the process that I do with these lenses: 1.) external observation for impact damage or other…

A Friend's Camera Collection Arrives at the Shop
I recently acquired this collection of cameras from a good friend of mine. It was his collection of many years and although there are some common cameras…

Mamiya 7 80mm Lens: Cleaning Concentric Rings of Fungus
This Mamiya 7 80mm lens had concentric rings of fungus. Kind of disappointing fungus, as least for photographic purposes as they were not really…

Fuji GS645S Wide: Broken Plastic Part in Shutter Cocking
This is a post about plastics. Plastics in camera construction. I am servicing a Fuji GS645S Wide W. Great camera, I have been repairing them since the…

RZ67 vs RZ67II: Two-Piece Winding Shaft Differences
This is a brief discussion about what I consider an important difference between the RZ67 and RZ67II in terms of build. The RZ67, unlike the RB67, had a…

RB67 180mm Early Lens (1974): Slow Shutter Release
This early version of a Mamiya RB67 180mm lens (1974) is being repaired for the typical slow/delayed shutter release. These need disassembly and removal of…

RB67 Pro Back: Counter Failure From a Loose Gear Plate Stud
This Mamiya RB67 Pro back came into the shop with complaint of the counter not working, so the film would just wind through without stopping. When I…

RB67 vs RZ67: Build Quality and Parts Availability
I am often asked about quality of the RB67 vs RZ67. I initially wrote a detailed response but could not post here on IG due to length. Here is a synopsis…

RZ67 Outfit With Water Damage: Donated for Parts
This RZ67 outfit came into the shop recently and, as you can see, has obvious water damage. All of the equipment is full of fungus/mold/rust. No repair…

Nikon Microscope Camera With a Canon Stepper Motor
The first photo is of a Nikon microscope camera that I was in the process of modifying to accept my Nikon mirrorless camera. I was surprised to see that…

Mamiya 7 150mm Lens: Finding Fungus Behind the Closed Shutter
Another fungus post. This 150mm Mamiya 7 lens came into the shop for a rangefinder check. While the rangefinder checked OK, I did notice fungus on inner…

Mamiya 55mm f/4.5 TLR Lens: Removing Filter Thread Dents
Removing dents from the taking and viewing lenses on a Mamiya 55mm f/4.5 lens for TLR. Fortunately, the owner of this lens was wise and did not take a…

Mamiya 645 80mm f/2.8 N: Loose Focus Ring and Slow Diaphragm
Servicing an 80mm f/2.8 N Mamiya 645 lens. This lens came into the shop with the complaint of a loose focus ring. A straightforward repair where some…