Unfortunately your current device does not have features required to fully protect your sensitive data while shopping online. In order to protect your own security, we do not allow the placing of orders using insecure devices. To become our valued customer, please upgrade your Internet browser software to a more recent and secure version. We recommend using the latest version of Google Chrome or Mozilla Firefox, but any modern browser will enable you to shop with us. For additional information please feel free to contact our customer support on 1-800-342-5534 .

Free Ground Shipping for orders > $99 in contiguous USA only  (see details)

Pentax 20-40mm F/2.8-4 HD DA ED Limited DC WR K Mount Autofocus Lens For APS-C Sensor DSLRS {55}

This product is currently out of stock.

Do you want to be notified?

We’ll Email you when product is in stock

Do You Have One To sell?

Sell Your Gear To KEH and Get Cash

* Item pictured for illustrative purposes only, actual item not pictured.

Pentax 20-40mm F/2.8-4 HD DA ED Limited DC WR K Mount Autofocus Lens For APS-C Sensor DSLRS {55} Description


Equipped with Pentax's most advanced optical technology - the HD Pentax DA 20-40mm ED Limited DC WR offers flexible focal length and versatile settings while unleashing your creativity. The HD Pentax DA 20-40mm ED Limited DC WR lens offers Pentax's weather sealed body with HD coating to protect against rain and dust. The lens has nine elements in eight groups with one extra low dispersion lens element, SP coating, fast f/2.8 aperture with nine rounded diaphragm blades producing a striking bokeh for exceptional visual expression, DC (in-lens direct current) focus motor ensuring quiet and smooth autofocus. It's 20-40mm focal length is equivalent to 305 - 61.5mm focal length in 35mm format. The HD Pentax DA 20-40mm ED Limited DC WR lens provides versatile and standard wide-angle shooting.

This model is the first zoom lens of the high-grade Limited Lens series, which is renowned for its exceptional visual description, distinctive appearance and meticulous finish in every detail. It features a two-times zoom range covering focal lengths from moderate wide angle to standard, and a large maximum aperture of F2.8 at its wide-angle end. In addition to the state-of-the-art HD coating and completely round-shaped diaphragm, it also comes equipped with a weather-resistant construction for the first time in the Limited Lens series, and a smooth, quiet AF system driven by a lens-installed AF motor, to capture beautiful, high-quality images, even under demanding weather and environmental conditions.

KEH Specifications

  • Focal Length: 24-40mm
  • Aperture Maximum: f/2.8 - f/4
  • Aperture Minimum: f/22 - f/32
  • Camera Mount Type: Pentax K with APS-C sensor
  • Minimum Focus Distance: 0.28m (0.9')
  • Elements/Groups: 9/8
  • Angle of View: 70-39°
  • Autofocus: Yes
  • Tripod Collar: No
  • Filter Thread: 55mm
  • Dimensions: Approx. 2.80 x 2.72"
  • Weight: Approx. 10.0 oz
  • Manufacturer Part#: 23000



Compatibility Pentax Cameras:
  • K10
  • K100
  • K110
  • K20
  • K200
  • K-3
  • K-30
  • K-5
  • K-5 II
  • K-5 IIs
  • K-50
  • K-500
  • K-7
  • K-m
  • K-r
  • K-x
  • *ist D
  • *ist DL
  • *ist DL2
  • *ist DS
  • *ist DS2
Application/Usage Camera

Physical Characteristics

Color Black

General information

Product Model 23000
Manufacturer Part Number 23000
Manufacture GTIN 4549212274749
Brand Name Pentax

Technical Information

Minimum Focus Distance 11.02"
Minimum Aperture 22
Maximum Angle of View 70°
Minimum Angle of View 39°
Lens Construction 9 Elements in 8 Groups
Zoom Min Focal Len 40 mm
Minimum Focal Length 20 mm
Autofocus Yes
Maximum Aperture Wide 2.8
Maximum Aperture Tele 4
Optical Zoom 2x
Zoom Min Focal Length 20.0000
Zoom Max focal length 40.0000

Customer Reviews