Additional Information:
Angular field of view - 17°
Anterior focal segment - 24.59 mm
Rear focal length - 66.46 mm
Light transmittance - 0.82
Resolving power, in the center - 100 lines/mm, along the edge of the field - 50 lines/mm.
Light diameter of the first surface - 53.8 mm
Luminous diameter of the upper surface - 42.6 mm
The maximum frame diameter is 62.5 mm.
RO501-1 2/100 is a film projection lens for devices that works on 35 mm film with a frame size of 18.2x23.2 mm.
Format: Medium format mirror
Type: Fixed focal length (fixed)
Focus: Manual check
System: M42
Year of production start: 1958
Optical design: 6 elements in 4 Planar groups.
LOMO RO501-1 F=100 Scale 1:2 - old Soviet (MADE IN USSR!) film projection objective. Like all objective views, it is quite mechanical and the aperture of the device. LOMO RO501-1 F=100 1:2 is one gold lens block.
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