Mir-1B
Focal length: 37mm
Aperture limits: F2.8-F16
Number of lenses / groups: 6 lenses in 5 groups
Aperture blades: 8
Front filter diameter: 49mm
Weight: 240g
Lens mount: M42/Sony E NeX
Jupiter-37A
The maximum open aperture is 3.5.
Maximum closed - 22.
The number of aperture blades - 12 pcs.
The angle of view is 18 degrees.
Number of lenses / groups - 4/3 pcs.
The minimum focusing distance is 1.2 meters.
The thread for light filters is М52х0.75.
Enlightenment type - single layer
.Weight - 410 grams
Lens mount: M 42/Sony E NeX
The focal length is 135 mm.
Helios 44-2
Focal length: 58mm
Relative aperture: 1:2
Scale of diaphragms: from 2 to 16
Diaphragm: Manual
Focusing range: from 0.5m to 20m to infinity
Lens mount: M 42/Sony E NeX
Sony E NeX At your request i can change mount to MFT (Mikro 4/3), Fuji X, PL, Canon EF mount, Nikon for free.