Pentax HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens (Black)


  • Pentax K Mount
  • 30.5-61.5mm (35mm Equivalent)
  • Aperture Range: f/2.8-32
  • ED and Super-Low Dispersion Elements
  • High-Grade Multi-Layer HD Coating
  • Weather-Resistant Seals and SP Coating
  • Smooth & Quiet DC Auto Focus Motor
  • Quick-Shift Focus System
  • Rounded Nine-Blade Diaphragm
  • First Limited Series Zoom Lens

Low in stock

SKU: 13598 Categories: , , , , Tags: , ,

The black HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens from Pentax is a high performance standard length zoom lens for K-mount APS-C cameras. Its 35mm focal length equivalency is 30.5-61.5mm providing a versatile and practical range for wide-angle to standard length shooting. It is the first zoom lens in the Pentax Limited Series line and brings with it a durable, weather-sealed body, HD lens coating and an optical design consisting of one ED element and one super-low dispersion element.
The f/2.8-4 maximum aperture enables effective low light shooting and, at the wide-angle end, control over its shallow depth of field for images that place sharp focus on the subject with a pleasing out of focus background. An in-lens direct current (DC) focus motor provides smooth and quiet autofocus action and its Quick-Shift Focus System enables rapid shift from autofocus to manual focus mode.
The lens barrel and the included hood are made from high-grade aluminum alloy, distance and depth of field scales are clearly marked on the barrel and a smooth rotating, knurled ring provides manual focus control. SP (Super Protect) coating on the front and rear lens elements repels dust, water and grease to help maintain peak performance.

30.5 to 61.5mm Focal Length Equivalency and f/2.8 Maximum Aperture
HD Lens Coating
DC Autofocus Motor
Quick-Shift Focus System
Weather-Resistant Construction and Durable Aluminum Barrel
SP Lens Coating
Optical Design
Rounded Diaphragm Blades
Package Weight 1.15 lbs
Package Dimensions 6.1 x 3.8 x 3.7 in
Format Compatibility

Pentax Digital (APS-C)

Dimensions (DxL)

Approx. 2.80 x 2.72″ (71 x 69 mm)


Maximum: f/2.8 – 4 Minimum: f/22 – 32





Package Weight

1.15 lb



Camera Mount Type

Pentax K

Tripod Collar


Angle of View

70° – 39°

Image Stabilization



9.98 oz (283 g)

Box Dimensions (LxWxH)

6.1 x 3.8 x 3.7″

Diaphragm Blades


Minimum Focus Distance

11.02″ (28 cm)



Focal Length

20 – 40mm Comparable 35mm Focal Length: 30.5 – 61.5 mm

Filter Thread

Front:55 mm


There are no reviews yet.

Be the first to review “Pentax HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens (Black)”