Optical Block of LOMO OKS1-50-1 lens - f/2, T/2.4, F=50mm, #730052

The lens was made at famous LOMO factory in 1961 (#613310). It has no focusing mount, so you'll need to make your own one. Diaphragm is there, but you need to make aperture control ring for it.

Appearance is excellent.

Mechanical condition is excellent.

Optical condition is fine.

Dimensions:

• Max diameter - 37 mm;
• Length - 41 mm;
• Mount thread - M33x0.5;
• Weight - 88 g.