Cameras Smena-2 were produced by factory "GOMZ" ("LOMO") since 1955 up to 1961 and by factory "MMZ" (Minsk city) since 1957 up to 1961.
Film accept: 35mm
Frame size 24X36mm
Shutter speed - 1/10, 1/25,1/50, 1/100, 1/200, "B".
Lenses: T-22, Diafragm: 4,5-16
Main differences from Smena: added synchronizer and selftimer