Industar 24M, for M39 SLR cameras, F105, 1:3.5, multicoated.
Same lens was used in Moskva 5 camera with between lens shatter. After Moskva 5 was taken out of production Industar 24 was modified for use with SLR cameras like Zenit and become Industar 24M.
Same lens was used in Moskva 5 camera with between lens shatter. After Moskva 5 was taken out of production Industar 24 was modified for use with SLR cameras like Zenit and become Industar 24M.
More on Industar 24M: http://www.zenitcamera.com/archive/lenses/industar-24.html