Calibration
44 posts tagged Calibration. Search within these →
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…
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…
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 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 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: Film Counter, Light Seals and Calibration
Servicing a Mamiya 645 1000s. This particular example is unusual in that it shows very little wear/use. These were professional tools in the day and often…
Mamiya Universal and Super 23: Rangefinder Adjustment With a Jig
When adjusting the rangefinder on the Mamiya Universal or Super 23, I always remove the complete rangefinder assembly for two reasons: 1.) this gives…
Mamiya 645 55mm f/2.8 Lens: Oily Blades and Flange Distance
Repair on Mamiya 55mm f/2.8 lens for 645 plus some technical info. This lens came into the shop with the typical oily blades. After cleaning, the blades in…
RB67 90mm K/L Lens: Floating Elements and Spacing Adjustment
Mamiya RB67 90mm K/L lens repair and info. First, some information on these lenses regarding a question that I am frequently asked: All the Mamiya RB67…
Mamiya 7: Adjusting Viewfinder Parallax and Rangefinder
Mamiya 7 adjustments. Using a ground glass on the film plane of the camera I can check and adjust parallax of the viewfinder. Also, as seen in photos three…
Copal 3 Shutter: Cleaning and Adjusting Speeds by Swedging
Copal 3 shutter repair. This Copal needed typical cleaning and lubrication. Also, some of the shutter speeds were not within specs. For leaf shutters such…
Mamiya 7 150mm Lens: Rangefinder Cam Repair
Repairing the rangefinder cam mechanism on a Mamiya 7 150mm lens. This lens came into the shop with a Mamiya 7 body that also needed rangefinder…
Mamiya 7II: Rangefinder Adjustment and 7 vs 7II Rangefinders
Mamiya 7II repair. Needed a rangefinder adjustment, repair to back latch and replacing damaged bottom cover. I am often asked about the difference in the…
Mamiya 645 Super: Shutter Service and Mirror Stop Replacement
Shutter service and mirror stop replacement on Mamiya 645 Super. This camera came into the shop with the shutter locked open and a broken mirror stop. It…
Mamiya NC1000S: Shutter and Meter Service, New Parts
Repairing this Mamiya NC1000s today. Needed a shutter/meter service in addition to replacing the front apron, bottom plate and battery cover. Fortunately I…
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…
Mamiya 645 Super: Setting Mirror Angle After Stop Replacement
A broken mirror stop is a common repair on the Mamiya 645 Super, Pro and Pro TL. After replacing the stop, the mirror needs to be set to a 45 degree angle…
Mamiya 80mm C Lens: Adjusting Focus with Autocollimator and Shims
After replacing a set of elements on an 80mm Mamiya C lens, an autocollimator and a special fixture is used to check and adjust focus using shims from…
Mamiya 645 1000S: Calibrating Shutter Speeds
Servicing a Mamiya 645 1000s. Shutter speeds needed calibration.
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…