lens:pen-asmc400mmf2.8edif
Table of Contents
Pentax-A* SMC 400mm f/2.8 ED [IF]
Summary
This immense lens is two stops faster than its standard A version, but it is also 5 times heavier, weighing in at 6kg.
Tech Specs
| Manufacturer | Pentax |
| Series | A* Series Prime |
| Model | SMC |
| Focal Length | 400mm |
| Max Aperture | f/2.8 ED [IF] |
| Min Aperture | f/32 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 450cm |
| Focus Rotation | ° |
| Iris Blades | 8 |
| Optical Design | 8/8 |
| Squeeze | none |
| Front Diameter | 165mm |
| Filter Thread | 145mm, 49mm rear |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 325mm |
| Weight | 6000g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1986
Launch Price:
Design Revisions:
Service
Cine-Mod
Notes
Media
lens/pen-asmc400mmf2.8edif.txt · Last modified: 2026/07/09 02:21UTC by Justin Rhoads