Table of Contents
IronGlass MKII Soviet 20mm T3.6
Summary
Tech Specs
| Manufacturer | IronGlass |
| Series | MKII |
| Model | Mir-20M |
| Focal Length | 20mm |
| Max Aperture | T3.6 |
| Min Aperture | - |
| Format | S35, FF, LF |
| Image Circle | - |
| Minimum Focus | 7in |
| Focus Rotation | 300° |
| Iris Blades | 15 |
| Optical Design | - |
| Squeeze | - |
| Front Diameter | 95mm |
| Filter Thread | - |
| Focus/Zoom Rod | - |
| Native Mount | PL, LPL, EF |
| Data Protocol | - |
| Length | 67mm |
| Weight | 0.73kg |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | Manual |
| Iris Drive | Manual |
| Zoom Drive | n/a |
History
Country of Origin: -
Release Date: -
Launch Price: -
Design Revisions:
Service
This section restricted to Duclos Staff users.
Service Manual: Disassembly/Re-assembly
Full CLA: #hrs.
Optics can be dropped out as an assembly much like a Cooke (with similar brass rollers), but the focus system is helical-based rather than cam follower-based. See above disassembly guide for details.
In terms of serviceability/build quality, they are almost equal to TLS rehousings, and much better than GL Optics.
C&A Optics: #hrs.
No centering options (outside of just spinning random elements) available.
…end of Staff section