LOMO OKS9-500-1 (5.3/500mm)

The OKS9-500-1 lens is purposed for usual film shots.

 Specification of LOMO OKS9-500-1 optical block
Manufacturer NPO "EKRAN"
Lens system -
Focal lengthf'498.1 mm
Angle of view2ω'3°07'
Effective relative aperturef:nэ1:5.9
Lens lengthΣd173.6 mm
Front focal lengthS-
Back focal lengthS'322.4 mm
Flange focal distanceZ-
Block lengthB460 mm
Block max. diameterD144 mm
Rear diameterD'-
Front element diameterd194.0 mm
Rear element diameterd262.0 mm
Mount thread -
Distance from rear end of the housing
to the focal plane
Aperture blades quantity ?
Frame size 16x22 mm
Weight 4.6 kg






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