Table of Contents
Pentax-M SMC 35mm f/2.8
Summary
The SMC Pentax-M 35mm f/2.8 is a compact, manual-focus wide-angle prime lens for Pentax K-mount 35mm and full-frame digital SLRs, produced from 1977 to 1984. It features a 6-element/6-group optical design, a 5-blade automatic diaphragm, and Pentax’s Super Multi-Coating (SMC) for improved contrast and flare resistance. As the slower sibling to the M 35mm f/2, it offers a more affordable and lightweight alternative without sacrificing much in optical quality. With a 63° diagonal field of view on full-frame and a minimum focus distance of 0.3m, it’s well-suited for landscapes, street photography, and general-purpose shooting. The lens uses a 49mm filter thread, weighs just 170g, and measures 63 × 35.5mm, making it a great choice for compact film or digital kits. It lacks an “A” setting on the aperture ring but is fully compatible with manual and aperture-priority modes on Pentax DSLRs.
Tech Specs
| Manufacturer | Pentax |
| Series | M Series Prime |
| Model | SMC |
| Focal Length | 35mm |
| Max Aperture | f/2.8 |
| Min Aperture | f/22 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 30cm |
| Focus Rotation | ° |
| Iris Blades | 5 |
| Optical Design | 6/6 |
| Squeeze | none |
| Front Diameter | 63mm |
| Filter Thread | 49mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 35.5mm |
| Weight | 170g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1977
Launch Price:
Design Revisions: