HD Pentax-FA 31mm F1.8 Limited Wide Angle Lens - Silver
The Pentax FA 31mm F1.8 is a 31mm f/1.8 lens designed for Pentax K mount cameras. Used copies start from $537.2 on GearFocus, with buyer protection on every purchase.
HD Pentax-FA 31mm F1.8 Limited Wide Angle Lens - Silver
Used Pentax FA 31mm F1.8 Listings on GearFocus
Lens Overview — Pentax FA 31mm F1.8
Key Features — Pentax FA 31mm F1.8
31mm F1.8 Full-Frame Prime: A fixed 31mm focal length with a fast f/1.8 maximum aperture delivers a natural, slightly wide perspective well-suited for street, documentary, and everyday photography.
FA Limited Series Optics: Part of Pentax's premium Limited lens family, known for high resolving power, refined rendering character, and meticulous optical construction.
HD Coating: Pentax's HD (High Definition) multi-layer coating reduces flare and ghosting for improved contrast and color fidelity in challenging lighting conditions.
Pentax K Mount Compatibility: Designed for Pentax K mount DSLRs, this lens works across a broad range of Pentax bodies including both full-frame and APS-C sensor cameras.
Autofocus & Manual Focus: Supports both AF and MF operation, giving photographers the flexibility to switch between focus modes to suit the shooting situation.
Compact Metal Construction: Weighing 345g, the lens is built with a solid metal barrel that feels substantial while remaining practical for all-day carry.
Lens Specifications — Pentax FA 31mm F1.8
| Spec | Detail |
|---|---|
| Use Cases | Travel, Studio |
| Lens Type | Wide-Angle |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 31mm |
| Maximum Aperture | f/1.8 |
| Camera System | DSLR |
| Lens Mount | Pentax K |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 58mm |
Description — Pentax FA 31mm F1.8
The HD Pentax-FA 31mm f/1.8 Limited in Silver is a full-frame prime wide-angle lens built for Pentax K mount DSLR cameras. Its 31mm fixed focal length and f/1.8 maximum aperture make it a capable choice for photographers who prioritize depth of field control and performance in lower light. The lens accommodates 58mm filters, keeping accessory options straightforward and accessible.
Weighing in at 345g, it is built with enough substance to feel premium without becoming a burden during extended use. Focus operation is versatile, with both autofocus and manual focus supported, allowing the photographer to adapt to different shooting demands. The lens carries no image stabilization, so stabilization-dependent techniques will require support from the camera body.
The Silver colorway gives this Limited series lens a refined, distinctive appearance that reflects its place within Pentax's premium lens lineup.
Pros — Pentax FA 31mm F1.8
- ✓Wide f/1.8 maximum aperture enables strong subject separation and low-light capability
- ✓Fixed 31mm focal length on a full-frame prime delivers a dedicated, optimized optical path
- ✓Supports both autofocus and manual focus, offering flexibility across shooting scenarios
Cons — Pentax FA 31mm F1.8
- ✗No image stabilization, which may be limiting in low-light or slower shutter speed situations without IBIS support
- ✗At 345g, it is moderately weighted for a 31mm prime, which some users may find heavier than expected
- ✗Restricted to Pentax K mount, limiting use to Pentax DSLR ecosystem only
Videos — Pentax FA 31mm F1.8
Pentax FA 31mm f1.8 Limited Lens Review — Scott J. Waldron 📷 Photography Banzai