Table of Contents
Pentax 67 SMC Takumar 45mm f/4
Summary
The SMC Pentax 67 / SMC Pentax-6×7 45mm f/4 is an ultra-wide-angle prime introduced in 1980 for the Pentax 6×7 medium format system, with a revised version released in 1989 under the Pentax 67 name. It delivers a diagonal field of view of 89°—roughly equivalent to a 24mm lens on 35mm film—making it one of the widest rectilinear lenses available for the system. It features a 9-element - 8-group optical design, Super Multi-Coating (SMC), and an 8-blade automatic diaphragm. The lens stops down to f/22, focuses as close as 37cm, and provides 0.17× magnification. It uses an 82mm filter thread, weighs 486g, and measures 91.5 × 57.5mm. It includes a rear gelatin filter holder, but no built-in hood. The lens has no “A” setting on the aperture ring, so it’s best used in manual or aperture-priority modes.
Came in two variants with similar specs:
SMC Pentax-6×7 45mm f/4 in 1980; SMC Pentax 67 45mm f/4 in 1989
Tech Specs
| Manufacturer | Pentax |
| Series | 67 |
| Model | SMC Takumar |
| Focal Length | 45mm |
| Max Aperture | f/4 |
| Min Aperture | f/22 |
| Format | 6×7 |
| Image Circle | - |
| Minimum Focus | 37cm |
| Focus Rotation | - |
| Iris Blades | 8 |
| Optical Design | 9/8 |
| Squeeze | none |
| Front Diameter | 91.5mm |
| Filter Thread | 82mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax 6×7 |
| Data Protocol | none |
| Length | 57.5mm |
| Weight | 486g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin: -
Release Date: 1980
Launch Price: -
Design Revisions:
Service
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Service Manual: (Insert link to manual here)
Full CLA: #hrs.
Enter relevant notes here
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Cine-Mod
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Focus Ring O.D.: -
Zoom Ring O.D.: -
Iris Ring O.D.: -
De-click Y/N: -
Additional Notes:
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Notes
Media
