Industar-61 L/Z 50mm F2.8 Lens for M42

Industar 61L/Z Lens serves as an interchangeable lens for the Zenit still cameras with a curtain shutter and manual aperture control, belongs to the type of universal lenses, gives good results and features a uniform distribution of resolution off centre.

SPECIFICATIONS:

• Focal length, mm: 50
• Maximum aperture: f2,8
• Angle of view, deg: 46
• Focusing range, m: 0,3 - inf
• Aperture range: f2,8 to f16
• Working distance, mm: 45,5
• Mount-thread for screwed-in attachements: M49 x 0,75
• Light transmission factor, min: 0,92
• Light diffusion factor, max: 0,015
• Overall dimensions, mm: Diam. 57 x 59
• Weight: 0,225 kg
• Camera mount thread: M42