LOMO OKS1-8.5-1 (3.5/8.5mm)

This seems to be widest LOMO lens for 35mm cine film camera ever made. It is very rare, and I didn't saw it in real life. Widest lenses I had were 10mm ones.

Specification of LOMO OKS1-8.5-1 optical block 

Manufacturer
NPO "EKRAN"
Lens system

-
Focal lengthf'8.6 mm
Angle of view2ω'116°
Effective relative aperturef:ne1:4
Lens length
Σd81.2 mm
Front focal lengthS-
Back focal lengthS'22.1 mm
Flange focal distanceZ
34 mm
Block length
B83 mm
Block max. diameter
D185 mm
Rear diameter
D'-
Front element diameter
d1114 mm
Rear element diameter
d2
11.6 mm
Mount thread

SpM30x0.75
Distance from rear end of the housing
to the focal plane
l
-
Aperture blades quantity

?
Frame size

16x22 mm
Weight
740 g