Pentax HD DA 20-40mm f/2.8–4.0 ED Limited DC WR Lens – Black

The Pentax HD DA 20-40mm f/2.8–4.0 ED Limited DC WR is the first zoom lens in the prestigious Limited series, combining the craftsmanship and image quality the line is known for with versatile focal lengths, a fast maximum aperture, and weather-resistant construction.

Crafted with meticulous precision and a machined aluminium exterior, this lens delivers outstanding imaging performance and handling in a compact, stylish form. With a 35mm equivalent focal length of 30.5–61.5mm, it covers wide-angle to standard perspectives—perfect for landscapes, street photography, travel, and portraits.

Key Features

• 2x Zoom Range (20–40mm)
  Covers the most used focal lengths for everyday photography (30.5–61.5mm equivalent on APS-C).

• Fast Aperture (f/2.8–4.0)
  Bright optics at the wide end for low-light performance and depth of field control.

• HD Coating
  Pentax's premium multi-layer coating minimises reflections, reducing flare and ghosting for clear, high-contrast images—even in challenging lighting.

• ED and Super-Low Dispersion Elements
  Delivers sharp, high-resolution images across the frame while minimising chromatic aberrations.

• Rounded Aperture Diaphragm
  Produces smooth, pleasing bokeh for more natural-looking out-of-focus areas.

• Quiet, Precise Autofocus
  Lens-integrated DC motor offers smooth and near-silent AF performance.

• Weather-Resistant (WR) Design
  Seven seals provide protection against rain, mist, and splashes when paired with WR Pentax DSLRs.

• Signature Limited Series Build Quality
  Hand-machined aluminium barrel, cap, and hood with elegant knurled zoom ring for refined operation and a premium tactile feel.

Specifications

• Focal Length: 20–40mm

• 35mm Equivalent: 30.5–61.5mm (APS-C format)

• Maximum Aperture: f/2.8–4.0

• Minimum Aperture: f/22

• Lens Construction: 9 elements in 8 groups

• Minimum Focusing Distance: 0.28m

• Filter Size: 55mm

• Dimensions: Approx. 71mm diameter × 68.5mm length

• Weight: Approx. 283g

• Mount Type: Pentax KAF3

• Included Accessories: Front and rear caps, dedicated hood

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Ideal For

• All-purpose everyday use

• Travel and street photography

• Portraits and lifestyle imagery

• Weather-resistant outdoor shooting

• Photographers who value both aesthetics and performance

A unique blend of precision optics, premium construction, and practical versatility, the Pentax HD DA 20-40mm Limited is an exceptional choice for Pentax users seeking a beautifully made, high-performance zoom for daily shooting.