Pentax 50mm f/1.4 SMC M Lens
The Pentax 50mm f/1.4 is a lens from Pentax. Check GearFocus for current availability, with buyer protection on every purchase.
Pentax 50mm f/1.4 SMC M Lens
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Lens Overview — Pentax 50mm f/1.4
Key Features — Pentax 50mm f/1.4
50mm f/1.4 Maximum Aperture: Wide maximum aperture allows for shooting in low light and produces a shallow depth of field with background separation.
Pentax K Bayonet Mount: Mounts natively on Pentax K-mount film and digital SLR bodies, and can be adapted to many modern mirrorless systems via third-party adapters.
SMC Multi-Coating: Pentax's Super-Multi-Coating reduces flare and ghosting, improving contrast and color rendition in challenging lighting conditions.
Manual Focus Design: Focus is set entirely by hand, suiting deliberate shooting workflows common in film photography and creative manual focus use.
35mm Full-Frame Coverage: Designed for the 35mm format, delivering a natural, slightly portrait-friendly field of view on full-frame film and digital bodies.
Compact 235g Build: Lightweight construction makes this lens easy to pair with a film body for everyday carry without adding significant bulk.
Lens Specifications — Pentax 50mm f/1.4
| Spec | Detail |
|---|---|
| Use Cases | Portrait, Street, Creative Effects |
| Lens Mount | Pentax K |
| Focus Type | Manual Focus |
Description — Pentax 50mm f/1.4
The Pentax 50mm f/1.4 SMC M Lens is a manual focus prime from the 1970s, built for the 35mm SLR format and mounted via the Pentax K bayonet. Weighing just 235g, it is a compact and manageable optic that suits film shooters and vintage lens enthusiasts alike. The f/1.4 maximum aperture provides strong light-gathering capability, making it well suited to available-light photography.
As a fixed focal length lens, it delivers a single, consistent perspective with no zoom adjustment. The SMC designation reflects Pentax's Super-Multi-Coating, a standard feature of Pentax lenses produced during this decade. The Pentax K mount ensures direct compatibility with a wide range of Pentax film and digital bodies, and the lens can be paired with hot shoe flash units for additional lighting control.
For those drawn to manual focus shooting and classic optics, this lens represents a historically significant and practically usable piece of 35mm SLR heritage.
Pros — Pentax 50mm f/1.4
- ✓Pentax K mount offers broad compatibility with Pentax K-mount film and digital bodies
- ✓Wide f/1.4 maximum aperture enables shooting in lower light conditions
- ✓Lightweight 235g body makes it easy to carry for extended shooting sessions
Cons — Pentax 50mm f/1.4
- ✗Manual focus only — no autofocus capability for fast-moving subjects
- ✗No electronic contacts confirmed in specs, which may limit communication with modern camera bodies
- ✗Vintage manufacture (1970s) means sample variation and wear are realistic considerations when buying used
Videos — Pentax 50mm f/1.4
Takumar 50mm f1.4 is one of the very best vintage lenses. Here's a review of the four M42 versions. — Simon's utak