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You are here : Home > Pentax HD DA 20-40mm f2.8 Limted DC WR Lens

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Pentax HD DA 20-40mm f2.8 Limted DC WR LensBookmark and Share

Categories: Pentax Zoom Lenses,
Pentax HD DA 20-40mm f2.8 Limted DC WR Lens
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Main Product Options

See Product Summary below for more information

Pentax HD DA 20-40mm f2.8 Limted DC WR Lens (Black) $935.00
Pentax HD DA 20-40mm f2.8 Limted DC WR Lens (Silver) $935.00

Associated Products

Selected extras will also be added to cart; see below for a running total.
PLEASE NOTE that some of the products listed, e.g. spare batteries, chargers, etc, may already be included with your purchase.

Hoya Circular Polarising Filter (55mm)
Hoya Circular Polarising Filter (55mm)
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Hoya Circular Polarising Filter Pro1D DMC (55MM)
Hoya Circular Polarising Filter Pro1D DMC (55MM)
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Hoya Circular Polarising HD filter (55MM)
Hoya Circular Polarising HD filter (55MM)
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Hoya UV (0) Pro1D DMC (55MM)
Hoya UV (0) Pro1D DMC (55MM)
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Hoya UV HD Ultra Violet Filter (55MM)
Hoya UV HD Ultra Violet Filter (55MM)
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Hoya UV Standard HMC Filter (55mm)
Hoya UV Standard HMC Filter (55mm)
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Vanguard 3-in-1 Cleaning Kit
Vanguard 3-in-1 Cleaning Kit

Total AU$ 

* All prices include GST
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Product Summary

  • F2.8-4 Aperture
  • 55mm filter
  • Quick-shift Focus System
  • DC Autofocus Motor
  • Dependable weather-resistant construction
  • High Definition Coating 
  • SP (Super Protect) Coating
  • ED (Extra-low Dispersion) glass
  • Round shaped diaphragm
  • Compatibility: Only with APS-C DSLR Cameras
  • 12 Months Genuine Warranty with Pentax Australia

For high performance photography, the HD Pentax DA 20-40mm f/2.8-4 ED Limited DC WR Lens will surely bring out the best in you. This lens has a 2x zoom coverage of 20-40mm in which we will have an aperture of f/2.8-4 which is proven effective even in low light. It also features a nine-blade rounded diaphragm for optimal performance and for beautiful bokeh effects. It also has a 55mm filter and a DC Autofocus Motor that ensures smooth operation and silent performance. Its Quick-Shift Focus System enables instant switching of autofocus to manual. Its reliability comes with its weather-resistant construction where the lens is constructed with seven special seals to prevent water, moisture and dust from penetrating the lens. It also has a SP (Super Protect) Coating that repels dust, grease and fingerprints keeping your images clear and sharp. To ensure a vivid and clean image, the lens is treated with a multi-layer HD coating to reduce unwanted reflections. Additionaly, this lens has ED glass elements that reduce focal aberrations. It is compatible only with APS-C DSLR Cameras.

Product Features in Detail

Two-times zoom lens of the Limited Lens series
With its two-times zoom coverage from 20mm to 40mm, this lens offers a focal-length coverage from 30.5mm to 61.5mm (in the 35mm format) when mounted on a PENTAX K-series lens-interchangeable digital cameras body. It provides the most frequently used focal lengths required for many popular applications, such as scenic photography, snapshots and portraiture, making it the ideal choice as an all-purpose, everyday lens.

Acclaimed Limited Lens-series quality
Inheriting the design concept of the Limited Lens series, this lens is designed with an optical construction that faithfully reproduces the feeling of depth while minimizing astigmatism over the entire zoom range. It allows the photographer to optimize the subject’s visual description, by making its appearance softer at larger apertures and sharper at smaller apertures. Its lens barrel, hood and cap are made of a high-grade aluminum material, and hand-machined for perfect proportions and beautiful texture. Positioned in the mid-section of the lens barrel, the zoom ring features a series of knurled grooves to facilitate zooming operation.

State-of-the-art optical technology
The lens has been treated with the PENTAX-developed HD coating, a high-grade, multi-layer coating that reduces reflectance in the visible light spectrum to less than 50 percent of that of conventional multi-layer coatings. This allows the user to capture crisp, high-contrast images free of flare and ghost images, even under such adverse lighting conditions as backlight. It also incorporates an ED (Extra-low Dispersion) glass and a super-low-dispersion glass element in its optics to deliver clear, high-resolution images with edge-to-edge sharpness, while effectively compensating for chromatic aberrations over the entire zoom range.

Weather-resistant lens in the Limited Lens series
This lens is the first Limited Lens-series model to feature a weather-resistant construction, with seven special seals to prevent the intrusion of water and moisture into the lens interior. By mounting it on a PENTAX weather-resistant digital SLR camera body, the user is assured of greater durability and reliability when shooting in the rain or mist, as well as at locations subject to spray or splashes.

SP Lens Coating
The PENTAX SP (Super Protect) coating on the front and rear lens elements repels dust, water and grease to keep your lens clean and your images sharp.

DC Autofocus Motor
Smooth autofocus operation using an AF driving motor (DC motor) installed in the lens barrel.

Rounded Diaphragm Blades
Enhanced with a rounded nine-blade diaphragm at the wide apertures for optimal optical performance and gorgeous bokeh effects while minimizing the streaking effect of point light sources.

Included in the Box

     HD DA 20-40mm f2.8 Limted DC WR Lens
     Lens hood MH-RA55
     Lens cap O-LW65A
     Lens case P70-150
     12 months Warranty from CR Kennedy Australia

Warranty Information

     This Pentax HD DA 20-40mm f2.8 Limted DC WR Lens comes with 12 months Warranty from CR Kennedy Australia.
     Our products are sourced from authorised Australian suppliers and therefore come with genuine Australian warranty.
     Camera Warehouse does not participate in 'Grey Market' or 'Parallel Import' activities.


Tech Specs

Focal Length 20-40mm
Equivalent to 35mm format 30.5-61.5mm
Maximum aperture F2.8-4
20-23 mm: F2.8
24-33 mm: F3.5
34-40 mm: F4
Minimum aperture F22-32
Number of Diaphragm Blades 9
Rounded aperture (20mm: F2.8-4   40mm: F4-5.6)
Angle of View 70-39° 
Construction 9 elements en 8 groups
Smallest object distance/magnification 0.28m (0.9 ft.)
Magnification 0.20×
Filter size 55mm
Mount KAF3
Weight Approx. 283 g  (avec pare-soleil, approx.291 g)
Dimensions (Length x Diameter) Approx. 68.5mm x 71mm ( 2.7 inch x 2.8 inch)
Special Features Weather Resistant
HD Coating
SP (Super Protect) Coating
Quick-shift Focus System



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