Table of Contents
LOMO Foton-A 37-140mm T4.4
Summary
Tech Specs
| Manufacturer | LOMO |
| Series | Anamorphic zoom |
| Model | Foton-A |
| Focal Length | 37-140mm |
| Max Aperture | T4.4 |
| Min Aperture | T16 |
| Format | - |
| Image Circle | - |
| Minimum Focus | 1.6m |
| Focus Rotation | - |
| Iris Blades | 8 |
| Optical Design | - |
| Squeeze | none |
| Front Diameter | - |
| Filter Thread | 52mm |
| Focus/Zoom Rod | none |
| Native Mount | - |
| Data Protocol | none |
| Length | - |
| Weight | - |
| Body Telescope | minimal |
| Body Material | aluminum |
| Focus Drive | manual |
| Iris Drive | manual |
| Zoom Drive | manual |
History
Country of Origin: Russia
Release Date: -
Launch Price: -
Design Revisions:
Service
This section restricted to Duclos Staff users.
Service Manual: Disassembly/Re-assembly
Full CLA: #hrs.
Lens does not have optical/centering adjustments. The last element in the rear group (away from the RE) is spun into the housing, the rear zoom group is spun into its housing, and the rear element of the front zoom group is spun in. Focus does not have hard stops and instead relies on limit of travel. The zoom does have a hard stop, but it may not be utilized at one end (in my case, the wide end was stopping via the follower.)
…end of Staff section
Cine-Mod
This section restricted to Duclos Staff users.
Focus Ring O.D.: 3.000“
Zoom Ring O.D.: 2.995”
Iris Ring O.D.: 2.605“
De-click Y/N: yes
Additional Notes:
…end of Staff section