Zenit B (Russian: Зени́т B) is a 35mm single lens reflex camera made by Russian camera manufacturer Zenit in quantities of 889,617 units.
Shutter speeds were B, 1/30, 1/60, 1/125, 1/250 and 1/500.
[2] It is very similar to the Zenit-E, except it does not have a built in light-meter.
It also had an instant return mirror, which was common in the era the camera was made.
In other countries, the camera was branded as the Kalimar SR100, the Revueflex-B, the Prinzflex-500, and as the Zenit B Global.