Lenses
96 posts tagged Lenses. Search within these →
RB67/RZ67 Lenses: Missing Rear Elements on Online Purchases
If you are buying RB67 or RZ67 lenses, please check them out very carefully for haze,fungus,separation. Especially the three lenses mentioned and shown in…
Mamiya 7 80mm Lens: Oval Lens Mount from a Drop
Sometimes, impact damage to a camera or lens may not be perceptible. In this case, this Mamiya 7 80mm lens arrived with the complaint that it did not mount…
RB67: Removing a Stuck Lens from the Body
I’m making this post as a further clarification for the YouTube video that we did some time ago on getting off a Mamiya RB67 lens that is stuck on a body…
Mamiya 6 50mm Lens: Stained Blades and Shutter Replacement
This Mamiya 6 50mm lens arrived in the shop with an inoperative shutter. An exam of the lens showed that the shutter blades and diaphragm blades had stains…
Mamiya 7 50mm Lens: Disassembly Tips to Avoid Damage
I’ve seen several Mamiya 6/7 lenses damaged a bit from repair attempts. These are not the ideal lenses to begin repair work on if you don’t have…
Mamiya 7 80mm Lens: Removing a Dented Filter Ring
One of the regular tasks that I do here in the shop is removing dents from the front filter rings on lenses. Not an exciting job but often very necessary…
Mamiya 7 Lenses Adapted for Arca Swiss Pico Digital Camera
The three mint condition Mamiya 7 lenses shown here in the photo will probably never again be mounted on a Mamiya 7 body. These 43mm, 80mm and 150mm lenses…
Mamiya 7 65mm Lens: Replacing the Broken Flex Cable
Since I am servicing a Mamiya 7 65mm lens I thought that I would do my yearly post on replacing the flex cable. Common complaint with this lens is that the…
Mamiya 6 75mm Lens: Unsharp Images from Loose Front Element
Sometimes the problem on a camera/lens turns out to be something different than what is first expected. In this case, my client told me that his Mamiya 6…
Mamiya 645 80mm f/2.8: Sticking Diaphragm from Oily Blades
This Mamiya 80mm f/2.8 lens arrived with a sticking diaphragm. As seen in the photos, lots of oil present on the diaphragm blades. And, a lot of grease on…
Mamiya 7 Lenses: Inspection After Impact Damage
These three Mamiya 7 lenses came into the shop today for checkout (along with a Mamiya 7 body) as my client mentioned that the body had some impact damage…
Mamiya 645 80mm f/1.9: Focus Helicals Separated, Over-Lubrication
Another Mamiya 80mm f/1.9 645 lens that has come apart from the focus helicals. This is quite common as the grease sublimates and causes the focus to…
Mamiya 7 43mm Lens: Bent Filter Ring Binding Diaphragm Ring
This Mamiya 7 43mm lens came into the shop with impact damage. The diaphragm ring would not move. After removing the filter ring, the diaphragm ring did…
Mamiya 7 80mm Lens: Condensation Haze in Rear Element Group
This Mamiya 7 80mm lens came into the shop from over the ocean (Brisbane to be exact) with a complaint of haze in the rear element assembly. Often, with…
Mamiya Press 50mm f/6.3: Stiff Focus Helical Cleaning
This 50mm f/6.3 (Biogon type) is the widest lens made for the Mamiya Press cameras. This example came into the shop with a very common issue of stuck/tight…
Mamiya 7: Cracked Frame Finder Glass Replaced with Dichroic Glass
This Mamiya 7 came into the shop with a cracked frame finder glass. This is a good time to replace the original style plain groundglass window with the…
Mamiya 7 65mm Lens: Loose Filter Ring Screws
A common issue with the Mamiya 7 lenses is that the filter ring screws become loose. The video shows how this 65mm lens arrived with the front ring loose…
Rodenstock 115mm Grandagon-N: Straightening a Bent Filter Ring
This 115mm Rodenstock 115mm Grandagon -N lens took a hard hit. As seen in the photos, the filter ring absorbed the shock and became quite bent. Even in…
Mamiya 7 Lens Checkout: Rangefinder Cam, Flex Cable and Filter Tests
Probably the most commonly done service here in the shop is rangefinder check/adjust on Mamiya 7 cameras and lenses. This outfit came in with complaints of…
Pentax 6x7 55mm: Removing a Dented Filter
A common issue is impact damage to the front of a lens filter ring. When the filter is damaged it will be out of round and often will not unscrew from the…
Mamiya 645 80mm f/1.9: Cine Conversion Warnings
Cine converting Mamiya 645 lenses is very popular these days. As a minimum, they are de-clicked and a focus gear is installed. Here is a warning with these…
RB67 Lenses on RZ67: Lens Throat Diameter and Adapter Ring
This post is a bit of a continuation of my previous one regarding using Mamiya RB67 lenses on the RZ67. The first photo shows the RB67 Pro S body in the…
RB67 Lenses on RZ67: Why Use Post-1978 791 Shutter Lenses
I often receive questions regarding the use of Mamiya RB67 lenses on RZ67 bodies. Hopefully this post will answer these questions. While you can certainly…
Mamiya 7 80mm Lens: Reassembling a Client-Disassembled Lens
This Mamiya 7 80mm lens arrived at my shop in pieces. No problem with USPS, the lens had already been disassembled a bit when it was shipped out to me! My…