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

Manufacturer NPO "EKRAN"
Lens system -
Focal length
f'9.55 mm
Angle of view2ω'175°
Effective relative aperturef:ne1:5.7
Lens lengthΣd111.1 mm
Front focal lengthS-
Back focal lengthS'27.9 mm
Flange focal distanceZ-
Block lengthB110 mm
Block max. diameterD124 mm
Rear diameterD'30 mm
Front element diameterd1104 mm
Rear element diameterd223 mm
Mount thread -
Distance from rear end of the housing
to the focal plane
l27 mm
Aperture blades quantity ?
Frame size 16x22 mm
Weight 1.1 kg