Included:
Lens. No caps.
Real focal length: 52.49mm
The angle of the
field of view is 45°
Front vertex focal
length: -49.60 mm
Rear vertex focal
length: 27.75mm
Distance from the
first to the last surface: 31.74 mm
The light diameter
of the first surface is 29.0 mm
The light diameter
of the last surface is 22.0 mm
Resolution
(0mm/10mm/20mm): 39/29/24 lines/mm
Resolution
according to TU (center/edge): 30/14 lines/mm
Light transmission
coefficient: 0.81
Geometric
vignetting: 56%
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Inside there are dust particles allowed by the Soviet GOST standard, when manufacturing lenses (do not affect the image quality). The state of the lens is
presented in photographs in such a way as to show as many traces of use as
possible. All photos are relevant. Soviet lenses, even new, ones can have some cosmetic flaws.
Without fungus. There are micro scratches on the front and back lenses. And this does not affect the optical properties in any way. The cosmetic condition is very good. The optical properties of this sample are very good. The focus ring and
diaphragm ring have a smooth stroke. The mechanical properties are excellent.
See my other lots
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