Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
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 0.3mm-0.005mm.
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…
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…
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…