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lens:penm42fetak18mmf11
Table of Contents
Pentax Fish-Eye-Takumar 18mm f/11
(INSERT SINGLE HERO IMAGE HERE - other images below in media section)
Summary
This lens has a field of view of 180 degrees and it covers the 24x36mm full frame image area. The aperture ring only has four positions (11, 16, 22, and 32). The diaphragm is a perforated disc with a perfectly circular opening for each of the four F-stop settings. The lens has fixed focus and thus no focusing ring.
Tech Specs
| Manufacturer | Pentax |
| Series | M42 Series |
| Model | Fish-Eye-Takumar |
| Focal Length | 18mm |
| Max Aperture | f/11 |
| Min Aperture | f/32 |
| Format | Full-Frame |
| Image Circle | ⌀ |
| Minimum Focus | fixed |
| Focus Rotation | ° |
| Iris Blades | - |
| Optical Design | 4/3 |
| Squeeze | none |
| Front Diameter | 60mm |
| Filter Thread | - |
| Focus/Zoom Rod | none |
| Native Mount | M42 |
| Data Protocol | none |
| Length | 12mm |
| Weight | 98g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin: -
Release Date: 1963
Launch Price: -
Design Revisions:
Service
Cine-Mod
Notes
Media
lens/penm42fetak18mmf11.txt · Last modified: 2026/07/15 05:52UTC by Justin Rhoads