Testing
49 posts tagged Testing. Search within these →
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…
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…
Leica IIF: Personal Camera Service After 20 Years of Non-Use
Although I don't generally service Leica cameras any longer for my business, I have a small collection of various models in my personal collection that I…
Mamiya 645 Pro: Battery Drain Caused by a Loose Spring
This has been a week of Mamiya 645 Super/Pro repairs. I have serviced a lot of these cameras and this is the first time seeing this issue: camera (645 Pro)…
Synchro Compur Shutter: Testing Flash Contact Efficiency
As part of the intake process on all shutters, I check contact efficiency and insulation of the flash circuit. After repairs these figures are checked…
RZ67: Tracking Down a Loose Screw Inside the Camera
Mamiya RZ67 repair. The owner of this camera has plans to sell it so he sent it to me for an operation check. First thing I noticed was a rattling sound…
Mamiya 7: Checking a Dropped Body and 65mm Lens
The owner of this Mamiya 7 told me that it had been dropped along with the 65mm lens. First thing I check when a camera has been dropped is the lens and…
Mamiya 645: Water Damage and Battery Drain, Not Worth Repairing
A Mamiya 645 came into the shop with a list of issues: shutter stuck open, battery drain, finder not fitting properly, light seals deteriorated. On…
RZ67 Pro II: Checking a Complaint of Unsharp Photos
This Mamiya RZ67II came into the shop with a complaint of unsharp photos. When I receive a camera with this type of problem mentioned, I do a visual check…
Mamiya 7II 80mm Lens: Testing the Flex Cable for Meter Problems
A Mamiya 7II w/80mm lens came into the shop with a complaint of the light meter not working properly. First thing I check is the lens as they often have…
Hasselblad Beattie Brightscreen: Measuring the Brightness Gain
Since I made a post about a Hasselblad and a Beattie Brightscreen, I have been asked about how much brighter it can make the focus screen. Well, outdoors…
Mamiya 645 1000S: Calibrating Shutter Speeds on a Modified FL-400
Calibrating shutter speeds on the Mamiya 645 1000s. Since the first generation of Mamiya 645 models do not have removable backs, I use a dedicated shutter…
RZ67: Testing the Internal Switches
The Mamiya RZ67 models are complex electro mechanical cameras that really benefit from having the proper test equipment for troubleshooting. There are nine…
Mamiya 645 Pro: Finding a Tiny Light Leak with a Pico-Ammeter
This Mamiya 645 PRO came into the shop with a difficult to locate light leak. I first checked body for impact damage suspecting that the back was not…
Mamiya 645 Pro TL: Checking Curtain Travel Times
Checking curtain travel times on a Mamiya 645 Pro TL with a Kyoritsu EF-511NK tester.
RB67 Shutter: Flash Sync Repair with a Kyoritsu IE-2A Tester
Using a Kyoritsu IE-2A tester on a Mamiya RB67 shutter flash sync repair.
RB67 and RZ67 Lenses: Checking Cocking Angle with the R-4 Gauge
This R-4 cocking gauge is used to check the cocking angle of RZ/RB lenses.
Mamiya 7 Lens: Shutter Speed and Rangefinder Checks on Fixture
A Mamiya 7 lens being checked out for shutter speeds and rangefinder calibration on a Mamiya factory test fixture.
Mamiya 7: Diagnostic Tests on the Factory Test Fixture
Running diagnostic tests on a Mamiya 7 body with factory test fixture. The same unit is used for testing Mamiya 6 bodies and lenses. You may have noticed…
RZ67: Checking Body Cocking Angle with the R-5 Gauge
Using the Mamiya R-5 cocking gauge to check cocking angle on an RZ67 body. If your shutter isn’t cocking fully the cocking angle may not be correct and…
Minolta HIT System: Game Boy Service Diagnostic Cartridges
This is something that I’ve been sitting on for a long time. The Minolta HIT system was a diagnostic tool set used by authorized Konica-Minolta…
Mamiya C Series TLR
Mamiya C series TLR cameras coming into the repair shop go through several testing phases to determine working condition. After a visual inspection where I…
Mamiya RB67
Mamiya RB67 bodies coming into the repair shop go through several testing phases to determine working condition. After a visual inspection where I am…
Mamiya RZ67
The Mamiya RZ67 is a fairly complex camera as it uses the mechanics of the RB67 body and adds electronic control circuitry. All RZ bodies coming into the…