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Pentax 30mm f/2.8 SMC Lens

The Pentax 30mm f/2.8 is a 30mm f/2.8 lens designed for Pentax K mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Pentax 30mm f/2.8 SMC Lens

Pentax 30mm f/2.8 SMC Lens

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Lens Overview — Pentax 30mm f/2.8

The Pentax 30mm f/2.8 SMC is a prime wide-angle lens built for Pentax DSLR systems, mounting via the Pentax K mount. As a full-frame lens with a fixed 30mm focal length and a maximum aperture of f/2.8, it sits comfortably in the wide-angle category, making it a practical choice for photographers who prefer the discipline and optical consistency of a prime over a zoom. The f/2.8 maximum aperture offers a meaningful advantage in lower light situations and allows for a degree of background separation that wider zoom lenses at comparable focal lengths often struggle to match.

Autofocus is supported alongside manual focus, giving shooters the flexibility to switch between the two depending on the shooting environment. The lens features a 49mm filter thread, which is a compact size that keeps compatible filters affordable and easy to source. Weighing in at just 220g, this is a notably lightweight optic that adds minimal burden to a camera kit.

The combination of a compact build, wide-angle prime focal length, and Pentax K mount compatibility makes this a sensible consideration for Pentax DSLR users seeking a dedicated wide-angle prime.

Key Features — Pentax 30mm f/2.8

30mm f/2.8 Prime: Fixed 30mm focal length with a maximum aperture of f/2.8 provides consistent wide-angle framing and useful light-gathering for a lens of this type.

Pentax K Mount: Native K mount ensures direct, adapter-free compatibility with Pentax DSLR bodies.

SMC Coating: Pentax's Super-Multi-Coating reduces flare and ghosting, helping maintain contrast and color fidelity in challenging lighting.

Auto and Manual Focus: Supports both autofocus and manual focus, giving shooters the flexibility to switch modes based on the situation.

Lightweight Build: At just 220g, this lens adds minimal weight to a Pentax kit, making it practical for extended handheld use.

49mm Filter Thread: The compact 49mm filter diameter keeps compatible polarizers, ND filters, and UV filters affordable and easy to source.

Lens Specifications — Pentax 30mm f/2.8

Pentax 30mm f/2.8 full specifications
SpecDetail
Use CasesLandscape, Street, Travel, Architecture
Lens TypePrime
FormatFull Frame
Zoom/PrimePrime
Focal Length30mm
Maximum Aperturef/2.8
Camera SystemDSLR
Lens MountPentax K
AutofocusYes
Focus TypeAuto, Manual
Image StabilizationNone
Filter Thread49mm

Description — Pentax 30mm f/2.8

The Pentax 30mm f/2.8 SMC is a prime wide-angle lens designed specifically for Pentax DSLR cameras using the Pentax K mount. With a fixed 30mm focal length and a maximum aperture of f/2.8, it delivers consistent optical performance across a wide range of shooting scenarios without the complexity of a zoom mechanism. Rated for full-frame coverage, it is a versatile option across the Pentax DSLR range.

The lens supports both autofocus and manual focus, providing flexibility to suit different shooting styles and subjects. A 49mm filter thread makes it easy to attach commonly available filters, and the compact thread size helps keep filter costs manageable. At just 220g, this is a lightweight prime that integrates easily into a travel or street kit without adding meaningful weight.

There is no optical image stabilization built into the lens.

Pros — Pentax 30mm f/2.8

  • ✓Fixed 30mm focal length with f/2.8 maximum aperture offers solid low-light capability for a wide-angle prime
  • ✓Full-frame coverage (lensFormat: Full Frame) means it works across the Pentax DSLR lineup without vignetting concerns
  • ✓Lightweight at just 220g, minimizing added bulk to a Pentax kit

Cons — Pentax 30mm f/2.8

  • ✗No image stabilization (imageStabilization: None), which may be a drawback in very low light handheld shooting
  • ✗Fixed 30mm focal length offers no framing flexibility — recomposing requires physically moving
  • ✗f/2.8 maximum aperture, while competent, is slower than f/1.8 or f/2 primes at similar focal lengths

Videos — Pentax 30mm f/2.8

Why Do I Even Buy Expensive Lenses? Pentax-M 28mm f2.8 Review - Cheap Lens with Great Results — snappiness

Resources & Downloads — Pentax 30mm f/2.8

Manuals & Guides

Frequently Asked Questions — Pentax 30mm f/2.8

What camera mount does this lens use?+
The lens uses the Pentax K mount, making it compatible with Pentax DSLR camera bodies. It is not natively compatible with other camera systems without an adapter.
Does this lens support autofocus?+
Yes, the lens supports both autofocus and manual focus operation. You can switch between the two depending on your shooting preference or situation.
Will this lens cover a full-frame sensor?+
Yes, the lens is specified as a full-frame format lens, so it provides coverage for both full-frame and APS-C Pentax DSLR bodies without image circle concerns.
What filter size does this lens take?+
The lens has a 49mm filter thread. This is a common compact filter size, making compatible circular polarizers, ND filters, and UV filters relatively easy to find and affordable.
How heavy is this lens?+
The lens weighs 220g, making it one of the lighter wide-angle prime options for a Pentax DSLR kit and well-suited to everyday carry use.
Does this lens have image stabilization?+
No, this lens does not include optical image stabilization. Pentax DSLR users may still benefit from in-body stabilization if their camera body provides it, but the lens itself contributes none.

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