3M-5A 500mm f/8 Lens USSR MTO Maksutov Mirror Telephoto M42

dditional Information:
MTO-500 500 mm f / 8.0 is a super long-focus mirror-lens lens for 35mm SLR cameras with an m42 connection thread.
It is used for shooting distant objects. The lens design does not allow the use of an iris diaphragm.

Other characteristics of the MTO-500 500 mm f / 8.0:

Angular field of view: 5 degrees.
Light transmission coefficient: not less than 0.58
Resolution in the center of the frame: not less than 35 lines / mm
Resolution at the edge of the frame: not less than 22 lines / mm
Largest frame diameter: 101mm


Format: 35mm mirror
Type: Fixed focal length (fixed)
Focus: Manual focus
System: M42
Optical design: 4 lenses and 3 mirrors
Features: Mirror-lens

Focal length -500 mm
Max. aperture - f / 8.0
Min. diaphragm. f / 8.0
Lep-in aperture - no
MDF (m.) - 4
Filter (mm.) - 77
Weight (gr.) -  1225




Condition in great condition! set in photo!




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