Specification of LOMO OKC1-8.5-1 optical block
This seems to be the widest LOMO lens for 35mm cine film camera ever made. It is very rare, and I didn't see it in real life. The widest lens I saw had 10mm focal length.
| Manufacturer | NPO "EKRAN" | |
| Lens system | - | |
| Focal length |
f' | 8.6 mm |
| Angle of view | 2ω' | 116° |
| Effective relative aperture | f:ne | 1:4 |
| Lens length | Σd | 81.2 mm |
| Front focal length | S | - |
| Back focal length | S' | 22.1 mm |
| Flange focal distance | Z | 34 mm |
| Block length | B | 83 mm |
| Block max. diameter | D | 185 mm |
| Rear diameter | D' | - |
| Front element diameter | d1 | 114 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 |
