SMC Pentax-F 50mm f/1.7 Lens
The Pentax 50mm f/1.7 is a 50mm f/1.7 lens designed for Pentax K mount cameras. Used copies start from $96.56 on GearFocus, with buyer protection on every purchase.
SMC Pentax-F 50mm f/1.7 Lens
Used Pentax 50mm f/1.7 Listings on GearFocus
Lens Overview — Pentax 50mm f/1.7
Key Features — Pentax 50mm f/1.7
50mm f/1.7 Prime: A fast maximum aperture of f/1.7 allows for shooting in lower light and achieving shallow depth of field with background separation.
Pentax K Mount: Natively compatible with Pentax K-mount DSLR bodies, making it a straightforward fit for existing Pentax systems.
Full-Frame Coverage: Designed for full-frame sensors, so it performs without vignetting or crop concerns on any Pentax K-mount body.
Auto and Manual Focus: Supports both autofocus and manual focus operation, giving shooters flexibility across different shooting situations.
Lightweight at 220g: At just 220g, this lens adds minimal bulk to a camera kit and is comfortable for extended handheld use.
SMC Lens Coating: Super Multi-Coating (SMC) helps reduce flare and ghosting, contributing to contrast and color fidelity in the final image.
Lens Specifications — Pentax 50mm f/1.7
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Street, Travel |
| Lens Type | Prime |
| Format | Full Frame |
| Zoom/Prime | Prime |
| Focal Length | 50mm |
| Maximum Aperture | f/1.7 |
| Camera System | DSLR |
| Lens Mount | Pentax K |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 49mm |
Description — Pentax 50mm f/1.7
The SMC Pentax-F 50mm f/1.7 is a prime lens designed for Pentax K-mount DSLR cameras, offering full-frame coverage in a compact, portable package. With a maximum aperture of f/1.7, it gives photographers access to a wide aperture that suits a variety of lighting situations and creative approaches. The lens operates in the standard focal length range at a fixed 50mm, making it well-suited for everyday photography where a natural, versatile field of view is desired.
Focus options include both autofocus and manual focus, providing adaptability across different shooting scenarios and styles. At just 220g, the lens is easy to carry without adding noticeable weight to your kit, and its 49mm filter thread ensures broad compatibility with commonly available filter accessories. There is no image stabilization on board, so technique and shutter speed awareness remain important when working in lower light.
Overall, this is a practical, lightweight standard prime for Pentax DSLR photographers.
Pros — Pentax 50mm f/1.7
- ✓Fast f/1.7 maximum aperture enables shooting in challenging light conditions
- ✓Lightweight at just 220g, ideal for all-day shooting without fatigue
- ✓Supports both autofocus and manual focus for shooting flexibility
Cons — Pentax 50mm f/1.7
- ✗No image stabilization, which may be limiting in very low light at slower shutter speeds
- ✗Pentax K-mount only, limiting compatibility to Pentax DSLR systems
- ✗Fixed focal length offers no zoom flexibility for variable framing
Videos — Pentax 50mm f/1.7
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