CARL ZEISS JENA SONNAR Russian Copy Lens M39 
The lens was re-made from Russian lens Industar-61 L/D.

Focal lengh- 52mm 
Relative aperture - f2.8
Focusing - 1m up to 20, infinite
Diaphragm scale -3.5; 4; 5.6; 8;11; 16 
Diaphragm - Manual 

Condition is Excellent. Optic is clean and clear. No scratches, no fungus. Operating is smooth.

Shipping via registered airmail in firm and safe box. Tracking number will be provided.