Mamiya Super Omegon 90mm f/3.5 Lens: Oil on Shutter Blades
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
Super Omegon 90mm f/3.5 lens by Mamiya. Servicing this lens (fits the Rapid Omega 100/200) with oil on the shutter blades. If you look at the number three photo, you can see the oil fringe on the blades. Needs a complete disassembly to remove and clean the blades.
A little history: Konica made the Koni-Omega Hexanon camera line until the mid 1970’s when Mamiya took over production. These cameras were still available and in dealer catalogs until the early/mid 1980’s (I had a repair account who had about fifty of these cameras in use at any given time in showrooms being used by so called “camera girls”so every week I would have a box of Rapid Omega cameras and lenses to fix and this was in the late 1980’s).The only overlap in Mamiya Press lenses and lenses for the Rapid Omega was the 90mm f/3.5 type shown here. The fourth photo shows the lens elements for the Mamiya Press 90mm f/3.5 and the Super Omegon 90mm f/3.5, both four element Tessar design mounted in a Seikosha 700 0 shutter. T
The fifth photo shows three versions of this lens: early chrome made by Konica, later black made by Konica and in the background, the Super Omegon made by Mamiya. The example that I am working on has the familiar Mamiya gold sticker with date code on the back indicating a code of BJ for October of 1982, a late model production.
