If you can buy additional original metal or plastic lens front cap cover or BOX with shipping discount.  Please buy it in my store.

Industar  26 m39 f/2.8 50mm is fast lens with a fixed focal length and a single layer of chemical enlightenment for cameras with threaded connection M39.

Features:

Focal Length 52 mm
Relative aperture of 1: 2.8 - 1:22
Field of view 45 °
Closest focusing distance of 1 m
Resolution (center / edge) 30/12 lines / mm
4 lenses in 3 groups
Vignetting 50%

See please my other item. Maybe will be something interested. Thank you!