Lenses
96 posts tagged Lenses. Search within these →
Mamiya 60mm f/2.8 Macro Lens: Repair and Versions
Mamiya 60mm f/2.8 Macro Lens. Another lens that arrived in two pieces. Seems to be a lot of that going around lately. This lens I find interesting, not too…
Mamiya 105mm C Lens for TLR: The Six Versions Explained
Servicing a Mamiya 105mm f/3.5 D Lens for TLR. The 105mm lens had the most variations of all the C lenses made for the TLR series with a total of six…
Nikkor-O 55mm f/1.2 Instrumentation Lens: Diaphragm Blade Repair
Servicing an unusual lens: Nikkor-O 55mm f/1.2 instrumentation lens. These lenses were designed for close focus work and have no focus helix. They were…
Mamiya 55mm SX f/1.4 Lens: Cleaning and Regreasing the Focus Helix
Repair on Mamiya 55mm SX f/1.4 lens. This particular lens, from around 1975, needed the focus helix disassembled, cleaned and re-lubricated. The focus ring…
Mamiya 80mm f/2.8 C Lens Variations
Mamiya 80mm f/2.8 C lens variations. I get many questions on the different styles of 80mm f/2.8 lenses that were made for the Mamiya TLR series. Here is…
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…
RB67 Lens: Fitting a Newer Shutter with External Sync Terminal
Mamiya RB67 lens replacement of shutter. I am getting ready to replace an old style RB shutter (circa 1972) with a newer designed shutter. The new shutters…
Mamiya 645 80mm f/1.9 Lens: Repairing a Lens in Two Pieces
Mamiya 80mm f/1.9 lens for 645. This lens arrived in two pieces. Not sure how this happened but after some repair to the helical guides, complete cleaning…
RB67 65mm Lens Variations: Single Coated, NB and C
Mamiya RB67 65mm Lens Variations. Although there were five different styles of RB67 65mm lenses (not counting the k/l version), these three variations…
RB67 Lens: Removing a Filter Ring Dent
Removing a dent from a Mamiya RB67 lens. The first photo shows the dent at around the 4.5 marking and the last photo shows the lens ready to accept a…
Nikkor f/1.1 LTM Lens: Replacing a Damaged Diaphragm Blade
Nikkor f/1.1 LTM Lens Repair. I did this repair a while ago and image quality is not the best but will post it now because it is an interesting lens. When…
RZ67 50mm f/4.5 Z Lens: Damaged Cemented Rear Element
Mamiya RZ67 50mm f/4.5 Z lens damage. Photos show the damage done to one of the cemented rear elements. The third photo is at 35x magnification and the…
Mamiya CS 50mm f/1.4 Lens: Oil on the Front Element
This Mamiya CS 50mm f/1.4 lens had a bit of oil residue on the back of the front element as seen in photo two. Repair was straightforward, remove and clean…
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 80mm f/2.8 S C Lens: Swapping a Shutter Missing Parts
A Mamiya TLR 80mm f/2.8 S lens came into the shop for routine cleaning. On opening the shutter I discovered that someone had "borrowed" several parts from…
Pentax 6x7 105mm f/2.4 Lens: Fixing Barrel Wobble
Servicing a Pentax 6x7 105mm f/2.4 lens. This lens had a bit of a wobble to the lens assembly. Not an uncommon issue, it is caused by the loosening of…
RB67 Pro S: Lens Stuck on Body After Impact Damage
This RB67 Pro S came into the shop with the complaint that the lens could not be removed. Body and lens working fine, but the lens lock ring would not…
Mamiya Press 127mm Lens: Shutter Mechanism Cleaning
This Mamiya 127mm Press lens, while in very clean condition externally, is in need of some disassembly and cleaning of the shutter mechanism. The second…
Hasselblad 50mm Distagon: Not Focusing to Infinity
This 50mm Hasselblad Distagon (circa 1962) came in a bit battered and rough and would not focus to infinity. It's not a good sign when you see a lens with…
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 55mm C Lens on the Bench
Servicing a Mamiya 55mm C lens.
Stiff Focus Issues on Mamiya Lenses
Most of the lenses coming into the shop with stiff focus problems are either 645 lenses or Press Universal lenses. This is caused by the focus helicoid…
Mamiya 7 Body and Lenses
Most service that I do on the Mamiya 7/7II involve rangefinder adjustments. When a Mamiya 7 comes into the shop for rangefinder adjustment, first step is…