| Manufacturer | Sony |
| Series | Prime |
| Model | SAL-20F28 |
| Focal Length | 20mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Format | Full Frame |
| Image Circle | ⌀ |
| Minimum Focus | 0.25m |
| Focus Rotation | ° |
| Iris Blades | 7 |
| Optical Design | 9/10 |
| Squeeze | - |
| Front Diameter | - |
| Filter Thread | 72mm |
| Focus/Zoom Rod | - |
| Native Mount | A |
| Data Protocol | - |
| Length | 2-1/8in |
| Weight | 285g |
| 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: (Insert link to manual here)
Full CLA: #hrs.
Enter relevant notes here
…end of Staff section