HD PENTAX-DA 15mm F4 ED AL Limited

From £539.99 Regular Price £599.99
HD PENTAX-DA 15mm F4 ED AL Limited lens for K-mount lens-interchangeable digital cameras, featuring high-grade HD coating and round-shaped diaphragm.
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The HD PENTAX-DA Limited interchangeable lenses are designed for use with K-mount lens-interchangeable digital cameras. These lenses inherit the distinctive visual description and a premium appearance of the acclaimed PENTAX Limited Lens series, while adding the state-of-the-art HD coating and a round-shaped diaphragm, to deliver even higher digital imaging performance in combination with a K-mount camera body.

Developed based on the Limited Lens series — renowned for the meticulous finish in every detail from the outstanding image rendition to the high-quality, hand-machined aluminum body — these new lenses assure even better optical performance than the original Limited Lens-series models. They are treated with the HD coating, which assures much higher light transmittance than conventional multi-layer coatings to deliver sharp, clear images free of flare and ghost images, even under such demanding conditions as backlight. They also feature a completely round-shaped diaphragm to produce a natural, beautiful bokeh (out-of-focus) effect in the foreground and background.­­­­

High-grade HD coating for exceptional image rendition

All lenses are treated with HD coating,* a high-grade multi-layer lens coating that assures higher light transmittance and lower reflectance than conventional multi-layer coatings. As the result, they produce sharp, clear images free of flare and ghost images, even under such adverse lighting conditions as backlight.

* HD stands for High Definition, and signifies the lens’s capacity to reproduce images that excel in transparency, definition, resolution and rendition.

Round-shaped diaphragm for beautiful out-of-focus rendition 

All lenses feature a completely round-shaped diaphragm to optimize the performance of their distinctive optics. This diaphragm produces a natural, beautiful bokeh (out-of-focus) effect, while minimizing the streaking effect of point light sources.

Premium quality of the Limited Lens-series

While inheriting the design concept of the Limited Lens series, these lenses were designed by combining a series of mechanical and numerical evaluations with human assessment of test-shooting samples to assure the ultimate in image reproduction. Their optical design has been optimized for digital photography to deliver sharp, clear images with outstanding contrast, even at the maximum aperture. In addition, their lens barrel, hood and cap are all made of a high-grade aluminum material, hand-machined for perfect proportions and beautiful texture.

Other features

-Equivalent to 23 mm in 35mm film format
-Extra low-dispersion ED lens elements for brilliant sharpness and saturated colours
-AL Aspherical element to reduce aberrations and provide crystal clear images
-Fast manual focusing in AF mode with Quick Shift focus system
-Super Protect coating of the front lens element for effective protection against dirt and finger-marks
-Aluminium Alloy
-Compact and lightweight

In order to discover the products which are being developped and the ones which are planned, you can download our roadmap in pdf:

To see our K-mount currently available range, please download Lenses & Accessories brochure.

Visit the PENTAX Lens Technology web page to discover more about the PENTAX lens construction.

Read more about the PENTAX Focus Function here.

You can use the PENTAX Lens Glossary to learn more about its features.

Product Specifications

Article Number21470 (Black), 21480 (Silver)
Focal length equivalent to 35 mm format


Maximum aperture


Minimum aperture


Number of Diaphragm Blades


Diaphragm control : Fully Automatic

Angle of View



8 elements in 6 groups

Focusing Range

0,18 m - unendlich

Smallest object distance/magnification

0.18m (0.6ft)



Filter size





189 g

Dimensions (Length x Diameter)

63mm x 39.5mm

Kit Content

Lens hood: Built in

Lens cap: Exclusive Cap

Lens case: Exclusive Case


HD Coating

Rounded aperture (F4 to F5.6)

Quick-shift Focus System

SP (Super Protect) Coating

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