LOMO OKS1-9.5-1 (5/9.5mm)

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 

Manufacturer
NPO "EKRAN"
Lens system

-
Focal length
f'9.55 mm
Angle of view2ω'175°
Effective relative aperturef:ne1:5.7
Lens length
Σd111.1 mm
Front focal lengthS-
Back focal lengthS'27.9 mm
Flange focal distanceZ
-
Block length
B110 mm
Block max. diameter
D124 mm
Rear diameter
D'30 mm
Front element diameter
d1104 mm
Rear element diameter
d2
23 mm
Mount thread

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

?
Frame size

16x22 mm
Weight
1.1 kg