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Pentax 24mm f/2.8 SMC Lens

The Pentax 24mm f/2.8 is a 24mm f/2.8 lens designed for Pentax K mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Pentax 24mm f/2.8 SMC Lens

Pentax 24mm f/2.8 SMC Lens

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Lens Overview — Pentax 24mm f/2.8

The Pentax 24mm f/2.8 SMC is a manual-focus, prime wide-angle lens built for the Pentax K mount. Designed to cover a full-frame image circle, it brings a classic shooting experience to both vintage Pentax film bodies and modern Pentax K-mount DSLRs alike. With a maximum aperture of f/2.8, it offers a reasonably bright entrance pupil for a wide-angle prime, giving photographers some flexibility when working in lower ambient light or when seeking to separate a subject from a wide background.

The lens accepts 52mm filters, a compact thread size that reflects the overall lightweight build — the entire optical unit weighs just 230g, making it an easy companion for travel or street work where carrying heavy glass is a disadvantage. Focus is entirely manual, which suits deliberate, considered shooting styles and makes it an appealing option for photographers who enjoy full control over their focus plane. As a prime lens, there are no zoom compromises: the 24mm focal length is fixed, encouraging intentional composition and movement around the scene.

The Pentax K mount ensures straightforward mechanical compatibility with a broad range of Pentax K-mount bodies, and with appropriate adapters, the lens can find new life on a variety of mirrorless systems. For shooters seeking a lightweight, full-frame-capable wide-angle prime with a classic manual-focus character, this lens presents a compelling case.

Key Features — Pentax 24mm f/2.8

24mm Fixed Focal Length: A classic wide-angle perspective well-suited for landscapes, architecture, street photography, and environmental portraits.

f/2.8 Maximum Aperture: Provides a reasonably bright entrance pupil for a wide-angle prime, giving flexibility in lower light conditions.

Full-Frame Coverage: Designed to cover a full-frame image circle with no vignetting on full-frame Pentax film or digital bodies.

SMC Optical Coating: Pentax's Super-Multi-Coating reduces flare and ghosting for improved contrast and color fidelity.

Manual Focus Only: Fully manual focus operation suits deliberate shooting styles and gives precise control over the focus plane.

Pentax K Mount: Mechanically compatible with a wide range of Pentax K-mount film and DSLR bodies, and adaptable to many mirrorless systems.

Lens Specifications — Pentax 24mm f/2.8

Pentax 24mm f/2.8 full specifications
SpecDetail
Use CasesLandscape, Architecture, Street, Travel
Lens TypePrime
FormatFull Frame
Zoom/PrimePrime
Focal Length24mm
Maximum Aperturef/2.8
Camera SystemDSLR
Lens MountPentax K
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread52mm

Description — Pentax 24mm f/2.8

The Pentax 24mm f/2.8 SMC is a prime wide-angle lens built around the Pentax K mount, designed to cover a full-frame image circle. With a maximum aperture of f/2.8, it delivers a bright and capable entrance pupil for a lens of this focal length, suitable for a range of shooting conditions. Focus is manual only, putting full creative control in the photographer's hands and giving the lens a deliberate, tactile shooting character that suits street, landscape, and architectural work.

At just 230g, it is a notably lightweight piece of glass that fits comfortably in a compact kit bag without adding meaningful bulk. The 52mm filter thread keeps filter costs down and makes it easy to pair with a wide selection of accessories. As a fixed 24mm focal length prime, it rewards purposeful composition and physical engagement with a scene.

Whether mounted on a vintage Pentax film body or a modern Pentax K-mount DSLR, this lens brings a classic wide-angle perspective to any shooter who values manual control and a lightweight form factor.

Pros — Pentax 24mm f/2.8

  • ✓Full-frame coverage (lensFormat: Full Frame) means no image circle limitations on full-frame Pentax bodies
  • ✓Maximum aperture of f/2.8 provides a bright entrance pupil for a 24mm prime
  • ✓Lightweight at just 230g, well-suited for travel and extended handheld use

Cons — Pentax 24mm f/2.8

  • ✗Manual focus only — no autofocus support, which may slow shooting in fast-moving situations
  • ✗No image stabilization, so handheld shots in low light depend entirely on technique and shutter speed
  • ✗Fixed 24mm focal length offers no zoom flexibility, requiring physical repositioning to reframe

Resources & Downloads — Pentax 24mm f/2.8

Manuals & Guides

Frequently Asked Questions — Pentax 24mm f/2.8

What camera mount does this lens use?+
The lens uses the Pentax K mount. It is designed for Pentax K-mount DSLR cameras. With third-party adapters, it can also be used on various mirrorless systems, though native compatibility is with Pentax K-mount bodies.
Does this lens have autofocus?+
No — this lens is manual focus only. There is no autofocus mechanism. Photographers must focus the lens by hand using the focus ring.
Will this lens cover a full-frame sensor?+
Yes. The specifications list the lens format as Full Frame, meaning it is designed to project an image circle that covers a full-frame sensor without vignetting under normal use.
What filter size does this lens accept?+
The lens has a 52mm filter thread. Standard 52mm screw-in filters for UV protection, polarization, or other effects will fit directly onto the front of the lens.
How heavy is this lens?+
The lens weighs 230g. This makes it a relatively lightweight option, well-suited for photographers who prioritize a compact, travel-friendly kit.
Does this lens have image stabilization?+
No. The image stabilization is listed as None. Any camera-body-based stabilization would need to come from the camera body itself, not from the lens.

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