Table of Contents
Pentax-M SMC 400mm f/5.6
Summary
This extreme-telephoto lens has a an A-series counterpart with a different optical formula whereas the “K” version is optically the same as the “M”.
Tech Specs
| Manufacturer | Pentax |
| Series | M Series Macro |
| Model | SMC |
| Focal Length | 400mm |
| Max Aperture | f/5.6 |
| Min Aperture | f/45 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 500cm |
| Focus Rotation | ° |
| Iris Blades | 8 |
| Optical Design | 5/5 |
| Squeeze | none |
| Front Diameter | 85mm |
| Filter Thread | 77mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 277mm |
| Weight | 1240g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1977
Launch Price:
Design Revisions:
Service
This section restricted to Duclos Staff users.
Service Manual: (Insert link to manual here)
Full CLA: TBD hrs.
…end of Staff section
Cine-Mod
This section restricted to Duclos Staff users.
Focus Ring O.D.: -
Zoom Ring O.D.: -
Iris Ring O.D.: -
De-click Y/N: -
Additional Notes:
…end of Staff section