Table of Contents
Pentax SMC 35mm f/3.5
Summary
The SMC Pentax 35mm f/3.5 is a compact, manual-focus wide-angle prime lens for Pentax K-mount 35mm and full-frame digital SLRs, produced from 1975 to 1977. It features a 5-element/4-group optical design derived from the classic Auto-Takumar 35mm f/3.5, a 5-blade automatic diaphragm, and Pentax’s Super Multi-Coating (SMC) for improved contrast, color fidelity, and flare resistance. With a modest f/3.5 maximum aperture, it prioritizes sharpness and portability over speed. The lens focuses down to 0.35m, delivers a 0.13× magnification, and uses a 52mm filter thread. It weighs just 161g and measures 63 × 36mm, making it nearly pancake-like in size. Though it lacks an “A” setting on the aperture ring, it’s fully compatible with manual and aperture-priority modes on Pentax DSLRs.
Tech Specs
| Manufacturer | Pentax |
| Series | K Series Prime |
| Model | SMC |
| Focal Length | 35mm |
| Max Aperture | f/3.5 |
| Min Aperture | f/22 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 35cm |
| Focus Rotation | ° |
| Iris Blades | 5 |
| Optical Design | 5/4 |
| Squeeze | none |
| Front Diameter | 63mm |
| Filter Thread | 52mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 36mm |
| Weight | 161g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1975
Launch Price:
Design Revisions: