Calibration
44 posts tagged Calibration. Search within these →
Mamiya 645 Super/Pro/Pro TL: Mirror Stop Replacement and Calibration
This is another post on the Mamiya 645 Super/Pro/Pro TL mirror stop repair. I get these cameras in constantly so need to regularly post this info for new…
Mamiya 7 80mm Lens: Rangefinder Cam Far Out of Spec
The complaint on this Mamiya 7 w/80mm lens body/lens combination is that the images are not sharp. But, the rangefinder lined up perfectly. A quick exam…
Mamiya 7 80mm Lens: Unsharp Images, Cam and Focus Calibration
My client sent in his Mamiya 7 and 80mm lens complaining of images that did not have optimum sharpness. On checking the camera rangefinder, I found it to…
Mamiya 7/7II: Rangefinder Calibration and Adjusting Screw Damage
One of the most common services that I provide is rangefinder calibration on the Mamiya 7/7II. While it may seem like a simple process, the details can go…
Mamiya 7: Impact Damage to Rangefinder, Frame Lines and Flash Sync
This Mamiya 7 had impact damage and due to that, the rangefinder and frame finder lines needed attention. Also the top cover trauma caused the flash sync…
Mamiya 6/7: Rangefinder Calibration of Lenses and Field Check
The question of rangefinder calibration comes up constantly with Mamiya 6/7 owners. Generally, a quick field test is to focus on something at infinity (a…
Mamiya 7: Rangefinder Calibration Views and When to Calibrate
I had a number of questions, both posted here and in direct contact with me regarding my last post of rangefinder calibration on the Mamiya 7. So, I have…
Mamiya 7: Rangefinder Calibration Setup with One Meter Target
I am often asked about rangefinder calibrations on the Mamiya 7 and it is the most common service that I do on these cameras. The Mamiya 7 has three points…
Mamiya 7II: Rangefinder and Frame Line Calibration
This very clean Mamiya 7II came into the shop with rangefinder and frame line issues. The frame lines where not calibrated and during disassembly I found…
Mamiya 6/7 Rangefinder Calibration: Lenses vs Bodies
The most common issue that I get contacted about is rangefinder calibration on the Mamiya 6/7. And, often the conversation is: “I just purchased a new lens…
Mamiya 645 AF Series: Repair Fixtures and Why to Avoid Buying
This post is about a Mamiya camera that I generally don’t recommend purchasing these days: the Mamiya 645 AF series. Great camera when it works but it has…
Mamiya 6 50mm Lens: Bent Cocking Shaft and Shutter Replacement
This Mamiya 6 50mm lens would not release the shutter blades. After disassembly, I found that the cocking shaft in the shutter was binding, slightly bent…
Mamiya 6: Checking the Light Meter for Auto Exposure Errors
A Mamiya 6 came into the shop with a complaint of incorrect exposure on the A setting. The first photo shows the pieces necessary for checking the light…
Mamiya 7 New in Box: Rangefinder Calibration Before Sale
This Mamiya 7 is a bit unusual in that it came in with the original box and packing. My client told me that he bought it new in Japan and used it very…
RB67 90mm Lens: Replacing a Missing Index Stop
This Mamiya RB67 90mm came into the shop with a complaint that it would not lock on the body. A quick inspection showed that the rear lens index stop was…
Mamiya 7 65mm Lens: Recalibrating the Rangefinder Unit
This Mamiya 7 65mm lens needed some servicing to the shutter mechanism that required the shutter to be removed from the lens. This means removing the…
RZ67 65mm L-A Lens: Checking the Floating Element Position
After any service on a Mamiya RZ67 65mm L-A lens, the floating lens position needs to be checked. While it is set at production, lens resolution may be…
Mamiya Universal: Hazy Finder Cleaning and Rangefinder Calibration
Servicing a Mamiya Universal and 250mm f/5 lens. This particular example from 1981 looks like new, appears to have had very little use (many of these…
645 Pro: Intake Testing of Shutter Speeds
When a camera comes into the shop I like to do a function test on intake to get an idea of its health. This 645 Pro is shown having shutter speeds checked…
Mamiya C3: Replacing and Calibrating a Broken Focus Screen
This Mamiya C3 came into the shop with a fairly common issue- a broken focus screen glass. Replacement is straightforward, but the finder needs to be…
Mamiya 645 45mm C Lens: Oily Diaphragm Blades and Reassembly
Servicing a Mamiya 45mm C lens for the 645 system. Very common issue, oil on the blades causing the diaphragm to stay open wide. The 45mm lens (and the…
Mamiya C 80mm Lens: Taking and Viewing Lens Focus Mismatch
On intake, all Mamiya C series lenses get examined to insure that the taking and viewing lenses are focusing at the same point. This particular 80mm lens…
Mamiya 7 65mm Lens: Measuring Front and Rear Group Spacing
Inspecting a Mamiya 7 65mm lens for potential focus issues. All lenses that I service get certain parameters evaluated and on the Mamiya 7 65mm and 43mm…
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…