Table of Contents
Entaniya HAL 250 4.3mm (Variable Fixed Focus) f/4
Summary
Tech Specs
| Manufacturer | Entaniya |
| Series | HAL 250 |
| Model | - |
| Focal Length | 4.3mm (Variable Fixed Focus) |
| Max Aperture | f/4 |
| Min Aperture | - |
| Format | Variable |
| Image Circle | Variable |
| Minimum Focus | N/A |
| Focus Rotation | N/A |
| Iris Blades | N/A |
| Optical Design | 18/12 |
| Squeeze | none |
| Front Diameter | 150mm |
| Filter Thread | none |
| Focus/Zoom Rod | - |
| Native Mount | MFT, E, EF |
| Data Protocol | none |
| Length | 4.7 in. |
| Weight | 1.8kg |
| Body Telescope | none |
| Body Material | Aluminum |
| Focus Drive | Fixed |
| Iris Drive | Fixed |
| Zoom Drive | - |
History
Country of Origin: Japan
Release Date: -
Launch Price: -
Design Revisions:
Service
This section restricted to Duclos Staff users.
Service Manual: Disassembly/Re-assembly
Full CLA: send lens to factory
front element lock ring is glued well
Change collimation: 1 hr.
https://www.youtube.com/watch?v=0D3dZoRUL30&t=42s
Change iris disk: 1 hr.
https://www.youtube.com/watch?v=ujljz6lGYuA&t=88s
Change mount: 1 hr.
https://www.youtube.com/watch?v=Yw2cRl2KYUI
…end of Staff section