Table of Contents
Pentax-M SMC 80-200mm f/4.5
Summary
The SMC Pentax-M 80–200mm f/4.5 is a manual-focus telephoto zoom lens for Pentax K-mount 35 mm and full-frame digital SLRs, produced from 1979 to 1984. It succeeded the earlier K-series version and came in two iterations—one a rebadged K lens, the other with a revised optical design. Both feature a 15-element/12-group construction, an 8-blade automatic diaphragm, and Pentax’s Super Multi-Coating (SMC) for improved contrast and flare resistance. With a constant f/4.5 aperture, it offers a versatile zoom range for portraits, nature, and compressed landscapes. The lens focuses down to 1.6m, delivers a 0.12× magnification, and uses a 52mm filter thread. It weighs 555g, measures 65 × 142mm, and includes a built-in slide-out hood. The one-touch push-pull zoom mechanism allows for quick focal length changes, though it can be prone to zoom creep when pointed downward.
Tech Specs
| Manufacturer | Pentax |
| Series | M Series Zoom |
| Model | SMC |
| Focal Length | 80-200mm |
| Max Aperture | f/4.5 |
| Min Aperture | f/32 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 160cm |
| Focus Rotation | ° |
| Iris Blades | 8 |
| Optical Design | 15/12 |
| Squeeze | none |
| Front Diameter | 65mm |
| Filter Thread | 52mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 142mm |
| Weight | 555g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1979
Launch Price:
Design Revisions: