Table of Contents
Pentax 67 SMC Takumar 800mm f/6.7 ED [IF]
Summary
This supertele for the Pentax 6×7 system is a modern optical construction with internal focusing and two lens elements made from low dispersion glass. It was supplied with a 1.4x rear converter. With the converter you get the equivalent of a 1200mm f/9.5 lens. There is conflicting information about the optical construction. Pentax Canada says 11 elements in 9 groups whereas various other sources say 9 elements in 8 groups. The latter is supported by the one and only optical diagram PentaxForums have been able to find. If you have definite information on the optical formula please let a forum administrator know.
Came in two variants with similar specs:
SMC Pentax-6×7 800mm f/6.7 ED [IF] in 1983; SMC Pentax-M* 67 800mm f/6.7 ED [IF] in 1989
Tech Specs
| Manufacturer | Pentax |
| Series | 67 |
| Model | SMC Takumar |
| Focal Length | 800mm |
| Max Aperture | f/6.7 ED [IF] |
| Min Aperture | f/45 |
| Format | 6×7 |
| Image Circle | - |
| Minimum Focus | 800cm |
| Focus Rotation | ° |
| Iris Blades | - |
| Optical Design | 9/8 |
| Squeeze | none |
| Front Diameter | 150mm |
| Filter Thread | 128mm (rear 67mm) |
| Focus/Zoom Rod | none |
| Native Mount | Pentax 6×7 |
| Data Protocol | none |
| Length | 565mm |
| Weight | 6500g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1983
Launch Price:
Design Revisions: