Rare super wide angle lens made by LOMO for 35mm cine film cameras. I didn't saw it in real life.

Specification of LOMO OKS1-9.5-1 optical block 

Lens system

Focal length
f' 9.55 mm
Angle of view 2ω' 175°
Effective relative aperture f:ne 1:5.7
Lens length
Σd 111.1 mm
Front focal length S -
Back focal length S' 27.9 mm
Flange focal distance Z
Block length
B 110 mm
Block max. diameter
D 124 mm
Rear diameter
D' 30 mm
Front element diameter
d1 104 mm
Rear element diameter
23 mm
Mount thread

Distance from rear end of the housing
to the focal plane
27 mm
Aperture blades quantity

Frame size

16x22 mm
1.1 kg





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