Table of Contents
Pentax-M SMC 200mm f/4
Summary
The SMC Pentax-M 200mm f/4 is a compact manual-focus telephoto prime lens introduced in 1977 and produced until 1984, designed for Pentax K-mount 35mm DSLRs and compatible with APS-C and full-frame digital SLRs. It features a 6-element/5-group optical design, an 8-blade automatic diaphragm, and Super Multi-Coating (SMC) for improved contrast and flare resistance. With a constant f/4 aperture, it delivers a 12° diagonal field of view on full-frame (or ~8° on APS-C), making it ideal for landscape, wildlife, and sports photography—especially in daylight. The lens focuses down to 2 meters, offers a 0.13× magnification, and uses a 52mm filter thread. It weighs just 405g, measures 64 × 111mm, and includes a built-in sliding hood for added flare protection.
Tech Specs
| Manufacturer | Pentax |
| Series | M Series Prime |
| Model | SMC |
| Focal Length | 200mm |
| Max Aperture | f/4 |
| Min Aperture | f/32 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 200cm |
| Focus Rotation | ° |
| Iris Blades | 8 |
| Optical Design | 6/5 |
| Squeeze | none |
| Front Diameter | 64mm |
| Filter Thread | 52mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 111mm |
| Weight | 405g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1977
Launch Price:
Design Revisions: