Mamiya 7
130 posts tagged Mamiya 7. Search within these →
Mamiya 7 43mm, 65mm, 150mm, 210mm: Locking Shutters Open
This service involves modification of four Mamiya 7 lenses: 43mm, 65mm, 150mm and 210mm). My client requires that these lenses have the shutter blades…
Mamiya 7: Replacing a Broken Wind Lever Return Spring
This Mamiya 7 came into the shop with a wind lever that would not return. Not an uncommon issue and is usually caused by a broken wind lever return spring…
Mamiya 7II: Fabricating a Dichroic Frame Finder Window
Another Mamiya 7II with broken glass. Usually the viewfinder glass is broken but in this case, the frame finder glass was impacted. Since the frame finder…
Mamiya 7 65mm Lens: Testing for a Broken Flex Cable
This post is another one about the Mamiya 7 65mm lens. I see a lot of these lenses in the shop with the issue of a broken flex cable. If you are purchasing…
Mamiya 7II: Broken Self Timer Button and Loose Keeper
This Mamiya 7II has an issue that I see quite often: a broken self timer button. While this might not seem like a big problem if you don't use the self…
Mamiya 6/7 and RZ67: Why There Are No In-Between Shutter Speeds
I've been asked why some cameras will not produce an in-between shutter speed on the shutter dial. While mechanically controlled shutters have their own…
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…
Mamiya 7II: Dropped Camera, Stuck Rangefinder and Flange Check
This Mamiya 7II outfit came in for examination after being dropped. The immediate symptom was that the rangefinder would not move. And the 80mm lens 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…
Mamiya 7II Battery Cover: Metal vs Plastic Top Versions
This post is about a bit of minutiae regarding the Mamiya 7II that I have not seen addressed before. From the beginning of production in April 1999 until…
Mamiya 7: Sticky Dials from a Liquid Spill
This Mamiya 7 had a problem with the shutter speed dial, ASA dial, compensation dial, lock button and shutter release button all sticking or stuck in…
Mamiya 7 65mm Lens: Damaged Shutter Blades on a Loose Pivot
This Mamiya 7 65mm lens came into the shop with an erratic shutter. Sometimes it would not open or open partially. Looking at the second photo shows one of…
Mamiya 7 210mm Lens: Service and Lack of Rangefinder Coupling
Servicing a Mamiya 7 210mm lens. The 210mm lens is a bit of an oddball in that it does not rangefinder couple to the camera body. So, you have to estimate…
Mamiya 7 43mm Lens: Construction Differences and Special Tools
This Mamiya 7 43mm lens is having some service done to it and I thought I would point out some differences between it and the other Mamiya 7 lenses in…
Mamiya 7 80mm Lens: Haze Cleaning and an Out-of-Parallel Filter
This Mamiya 7 80mm lens came into the shop with the haze as shown in the first photo. My client told me that this suddenly appeared so I was hopeful that…
Mamiya 7 65mm Lens: Full Open Shutter Modification
Modifying a Mamiya 7 65mm lens for full open shutter operation. Since the Mamiya 6/7 lenses have shutters that stay closed normally, they can't be used…
Mamiya 7II: Replacing Cracked Viewfinder Glass
Replacing a broken viewfinder glass on Mamiya 7II. As seen in the second photo, there is a small crack in the viewfinder glass in the upper left corner…
Mamiya 7II: Wind Lever Jammed by Broken Self Timer Button
This Mamiya 7II came into the shop with an advance lever locked up in the position shown in the first photo. After much examination, I found a very small…
Mamiya 7 80mm Lens: Drying Out Moisture with Desiccant
This post is about desiccant. Please use it around storage of your cameras. This lens (Mamiya 7 80mm lens) had some moisture on the elements so it has been…
Mamiya 7: Replacing the Frame Finder Window with 7II Style Glass
This Mamiya 7 had a broken frame finder illumination window. The second photo shows the replacement window in place. In this case, I replaced the window…
Mamiya 7 65mm Lens: Replacing a Broken Flex Cable
This Mamiya 7 65mm lens came into the shop with a very common issue: broken flex cable. This cable connects the shutter to the camera connection pins on…
Mamiya 7II: Cracked Curtain Opening Knob and Rangefinder Fix
Servicing a Mamiya 7II with a few issues. The most obvious is that the rangefinder was off by quite a bit. Also, the first photo shows the curtain opening…
RZ67II vs Mamiya 7: Measuring Camera Vibration
This is a post about vibration analysis. I happen to have these two cameras on the bench (Mamiya RZ67II and Mamiya7) right now so thought it would be a…
Mamiya 7 vs 7II: Rangefinder Differences Explained
I get asked quite often about the rangefinder differences between the Mamiya 7 and 7II. And I read a lot of misinformation on the internet. So, here again…