Afocal attachment 20S-33M allows you to change the focal length of the lens. Used with projection lenses with a focal length of 90-120mm and relative aperture 1:1.8-1:2.
Technical data:
Nozzle increase fold.: 0.84
Projection distance: from 9m to inf.
Diameter: 92mm
Length: 120mm
Weight: 1030 gr
Serial number: 790665
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