| Manufacturer | ZEISS |
| Series | Contax |
| Model | - |
| Focal Length | 21mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Format | Full Frame |
| Image Circle | ⌀ |
| Minimum Focus | 8.64in |
| Focus Rotation | ° |
| Iris Blades | 6 |
| Optical Design | - |
| Squeeze | - |
| Front Diameter | 85mm |
| Filter Thread | 82mm |
| Focus/Zoom Rod | - |
| Native Mount | C/Y |
| Data Protocol | - |
| Length | 3.6in |
| Weight | 18.2oz |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
Country of Origin: -
Release Date: -
Launch Price: -
Design Revisions:
This section restricted to Duclos Staff users.
Service Manual: Disassembly/Re-assembly
Full CLA: 4-6 hrs.
Enter relevant notes here
Adj. iris when uneven: 1 hr.
rubbing against brass click plate internally. bend away from iris linkage
Special Service Notes:
-The front group is threaded in just beneath the serial number ring. Easily accessible.
-The rear group is held in by a single lock ring. Easily accessible.
-The focus carriage is bolted to the front helical by two plates (with 8 screws total).
-The focus carriage rides in a separate piece held onto the rear housing by 4 screws
-The focus scale is held on by a pinch ring with 6 screws.
Cine-Mod Notes
Focus Gear ID: 2.485“
Iris Gear ID: 2.475”
De-click Y/N: Yes
Additional Notes:
…end of Staff section