lens:pensmc400mmf5.6
Table of Contents
Pentax SMC 400mm f/5.6
Summary
This extreme-telephoto lens also comes in a slightly lighter M version with automatic diaphragm.
Tech Specs
| Manufacturer | Pentax |
| Series | K Series Prime |
| Model | SMC |
| Focal Length | 400mm |
| Max Aperture | f/5.6 |
| Min Aperture | f/45 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 800cm |
| Focus Rotation | ° |
| Iris Blades | 10 |
| 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 | 1285g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1975
Launch Price:
Design Revisions:
Service
Cine-Mod
Notes
Media
lens/pensmc400mmf5.6.txt · Last modified: 2026/07/09 09:35UTC by Justin Rhoads