Table of Contents
Pentax-A SMC 35mm f/2
Summary
The SMC Pentax-A 35mm f/2 is a fast, manual-focus wide-angle prime introduced in 1984 and produced until 1989, designed for full-frame K-mount film cameras. It was the final evolution of Pentax’s manual-focus 35mm f/2 lineage, succeeding the K and M versions, and added the all-important “A” setting on the aperture ring—enabling full Program and Shutter-Priority automation on compatible bodies. Optically, it features a 7-element - 7-group design with Super Multi-Coating (SMC) and a 6-blade automatic diaphragm. The lens stops down to f/22, focuses as close as 30cm, and delivers 0.17× magnification. It uses a 49mm filter thread, weighs 205g, and measures 63 × 41.5mm. It lacks internal focusing or weather sealing, but includes a PH-S49 hood and was often sold with a hard case (HA-90B). The build is classic A-series: compact, dense, and all-metal with a rubberized focus ring and engraved distance scale.
Tech Specs
| Manufacturer | Pentax |
| Series | A Series Prime |
| Model | SMC |
| Focal Length | 35mm |
| Max Aperture | f/2 |
| Min Aperture | f/22 |
| Format | Full-Frame |
| Image Circle | - |
| Minimum Focus | 30cm |
| Focus Rotation | ° |
| Iris Blades | 6 |
| Optical Design | 7/7 |
| Squeeze | none |
| Front Diameter | 63mm |
| Filter Thread | 49mm |
| Focus/Zoom Rod | none |
| Native Mount | Pentax K |
| Data Protocol | none |
| Length | 41.5mm |
| Weight | 205g |
| Body Telescope | - |
| Body Material | - |
| Focus Drive | - |
| Iris Drive | - |
| Zoom Drive | - |
History
Country of Origin:
Release Date: 1984
Launch Price:
Design Revisions: