Kalimar SR300 is a rebadged export version of Zenit-EM for the US market.

Some versions are also named Kalimar EM (#80058602 fotoua.com).

Also avilable in black, and ironically with olympic symbol for the Moscow olympics that USA didn't participate in as a protest!

The camera can also be found marked Cosmorex with a Cosmogon lens.

Cambridge Camera also produced one of these with a Cambron plate.

And there are others brands.

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