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2022

81 posts from 2022.

From the bench ·

RB67 65mm Early Lens (1971): Oil on Shutter Blades

Servicing a Mamiya RB67 65mm lens. This early example is from 1971 (Type LH61 made from 1970-1972). For the first five years of production the 65mm had a…

RB67 · Shutters · Cleaning

From the bench ·

Early Mamiyaflex TLR: Fungus and Mold From Storage in a Case

This early model Mamiya TLR (when they were still branding them as Mamiyaflex) came in for a checkup. It has probably been in this leather case for many…

C Series TLR · Fungus · Cleaning

From the bench ·

Mamiya 7 43mm Lens: Shutter Not Cocking From Water Damage

Mamiya 7 43mm lens on the bench. This particular example had a mechanical issue with the shutter not cocking. After some external observations and minor…

Mamiya 7 · Shutters

From the bench ·

Brooks Plaubel Veriwide 100: Synchro Compur 00 Shutter Cleaning

I'm thinning out my large collection of cameras and this Brooks Plaubel Veriwide 100 is one that probably needs to go to a new home. As you can see in the…

Shutters · Cleaning

From the bench ·

Mamiya 645 80mm f/1.9 N: Wrong Lubricant on Focus Helicoid

This Mamiya 645 lens, 80mm f/1.9 N, came into the shop with a focus that was very tight and grinding. Seemed to have no lubrication on the focus helical…

645 · Helicoid grease · Focus

From the bench ·

Mamiya SF 150mm RB Lens: Drilled Name Ring and Parts Donor

This Mamiya SF 150mm RB lens came to me with a name ring pre-drilled and a filter ring with some subtle dents. These are not too important flaws in this…

RB67 · Parts · Lenses

From the bench ·

Mamiya 7 80mm Lens: Drying Out Moisture Inside the Lens

This Mamiya 7 80mm lens was subjected to moisture. Fortunately, no damage to the shutter. After removing the lens group and some disassembly and cleaning…

Mamiya 7 · Cleaning · Lenses

From the bench ·

Mamiya 7 80mm Lens: Water-Damaged Shutter Not Opening

This Mamiya 7 80mm lens came into the shop with a complaint that the shutter was not opening. After some disassembly, the shutter looked fairly clean…

Mamiya 7 · Shutters · Parts

From the bench ·

Mamiya 645 Super/Pro/ProTL: Damage From a Broken Mirror Stop

I have done a few posts about the Mamiya 645 Super/Pro/ProTL mirror stop replacement but feel the need to post again as I have been seeing many of these…

645 · Parts

From the bench ·

Mamiya C TLR Lens: Two Shutter Checks You Can Do

Here are a couple of ways to check if your Mamiya C TLR lens needs service: 1.) In the first video, the shutter is released while the cocking lever is held…

C Series TLR · Shutters · Testing

From the bench ·

Mamiya 80mm C Lens: Replacing the Seiko 0 Speeds Escapement

Servicing a Mamiya 80mm C lens. This lens had several issues, main one being that the shutter was not working properly at the slow speeds. Usually…

C Series TLR · Shutters · Parts

From the bench ·

RB67 250mm Lens: Impact, Separation and Fungus

This Mamiya RB67 250mm lens wins the weekly trifecta for issues: 1.) impact damage 2.) separation in the element group 3.) lots of fungus. Looks like this…

RB67 · Fungus · Lenses

From the bench ·

Mamiya 645 Pro: Checking Bayonet Flatness After Impact

This Mamiya 645 Pro came into the shop with what I suspect might have been some impact damage. In cases like this, I carefully inspect the camera for…

645 · Testing · Calibration

From the bench ·

Nikon 50mm f/1.8 Series E: Insect Shells Inside the Lens

Servicing a Nikon 50mm f/1.8 Series E lens. This lens was in exceptional condition except for one issue: there was a small family of three insects living…

Nikon · Lenses · Cleaning

From the bench ·

Mamiya 7II: Replacing the Cable Release Socket

Replacing the cable release socket on a Mamiya7II. Mamiya made a major change in the cable release socket from the model 7 to the model 7II. On the Mamiya…

Mamiya 7 · Electronics · Parts

From the bench ·

Mamiya 645 80mm f/2.8: Oily Diaphragm and Loose Focus

This 80mm f/2.8 lens for the Mamiya 645 wins the prize for most oil on lens diaphragms this week. Also, the focus was very loose and uneven. For the lens…

645 · Cleaning · Helicoid grease · Focus

From the bench ·

Mamiya 6: Loose Wind Lever and Glue Residue

Servicing a Mamiya 6 and lenses. There were a few issues to deal with, most obvious was the wind lever that was loose. After removing the rubber covering…

Mamiya 7 · Mamiya 6 · Winding & transport

From the bench ·

A Fascinating Custom Camera

A quick look at a fascinating custom camera. Still don’t know what to call it.

From the bench ·

Recommended Book for Camera Collectors

For anyone just starting out in camera collecting or learning about photography, this book is a great start.

From the bench ·

RZ67: Wind Lever Locked After Electronic Release

Working on an RZ67 with a release issue. Actually, in this case, the issue was that the shutter would release electronically, but the wind lever would…

RZ67 · Electronics · Winding & transport

From the bench ·

Mamiya 645 80mm f/1.9: Lens Out of Focus Tolerance

This Mamiya 645 w/80mm f/1.9 lens came into the shop with a complaint of poor focus. In checking the lens, I found it to be plus 0.16mm out of tolerance as…

645 · Focus · Calibration

From the bench ·

Focus Fixtures for Adjusting Mamiya Lens Infinity

My once a year dusting of focus fixtures. The tools are used to adjust focus on Mamiya medium format and 35mm lenses. Each fixture has a small mirror at…

645 · Focus · Calibration · Tools

From the bench ·

Flange-to-Film Distance Fixtures for Mamiya Cameras

Still doing spring cleaning at the shop and thought this would be a good time to show some of the fixtures used for Mamiya flange to film distance and…

Mamiya 6 · Calibration · Tools

From the bench ·

Mamiya 645 PRO Mirror Stop: Pitfalls of 3D Printed Replacements

While replacing the mirror stop in this Mamiya 645 PRO, I feel it is time to talk about this procedure again. By now, many have decided to replace the…

645 · Parts