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A not(?) very known Cosinon 28/2.8 Auto MC, M42?

Torkel :: 14.10.2019 14:13:13

lvl. 1 (Lens-Learner)

In 1990 I bought a used Mamiya SLR with a Cosinon 28/2.8 Auto MC, M42. That lens differs from the common lens with the same name. It has another optics with 58 mm filterthread (instead of 52mm), and a longer focus scaled from 0.4 to 10 m (instead of 5m). The aparture has 6 blades.

In compairision do I find it to be sharper and to render a very good greyscale, while it in turn doesn.t perform very well with high contrast.

I have not been able to find any trace of this lens on the web, does anybody here know something about it?

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