Focal length: 52 mm
Field angle: 45°
Frame size: 24×36 mm
Number of lenses/groups: 6/4
Operating part — 44 mm
Relative aperture: 1:2
The limits of the scale diaphragms: 1:2-1:22
Number of diaphragm blades — 6
Adjustment of the aperture is controlled from camera
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