Optical Block of LOMO 2/56mm lens OKS7-56-1, #870001
The lens is the first one made made at LOMO in 1987 (#870001).
This is a lens for 70mm film cameras, so image circle is large enough to cover most sensors of modern digital cameras.
For sale is optical block only. It has iris diaphragm, but no aperture control ring, and no focusing mount, so you'll have to adapt it to your system yourself.
Max. diameter: 56 mm
Mount thread: M44x0.75
Length: 53 mm
Weight: 189 g
MINT condition, unused.
Can be used as is with some focusing system. Or you can use it as replacement unit if your lens have bad glass.