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Pentax HD DA 20-40mm F/2.8-4 ED DC WR Limited Lens

Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Zoom LensZoom LensRectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.55Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).

Lens Description

The Pentax HD DA 20-40mm F/2.8-4 ED DC WR Limited is a wide to normal zoom designed for cameras with a APS-C (1.5X) sensor. This bright variable-aperture zoom covers a 20mm to 40mm focal-range. It provides the same field of view as a 30-60mm lens on a Full-Frame camera. The body of this lens is weatherproof against adverse weather such as rain and snow. It has sealing to prevent entry of water and dust.

This zoom can focus down to 28cm from the imaging plane which gives it a maximum magnification of 0.2X. The lens offers a Quick-Shift AF system which lets the user simply rotate the focus-ring to focus manually. A built-in focus motor is used to set the focus-distance. It allowed Pentax to optimize the motor precisely for this lens in order to maximize performance.

This lens is only available for Pentax K. Follow this link for all current compatible digital cameras: Pentax K mount cameras with APS-C (1.5X) sensors.

Pentax HD DA 20-40mm F/2.8-4 ED DC WR Limited

Pentax HD DA 20-40mm F/2.8-4 ED DC WR Limited Specifications

Brand Pentax Model HD DA 20-40mm F/2.8-4 ED DC WR Limited
Mount Pentax K Max FLM 1.5X
Focal Range 20 - 40mm View Angle 70 - 39°
Max ApertureF/2.8 - 4Min ApertureF/22 - 32
Min Focus28cmMagnification0.2X
Filter Size55mm Aperture Blades9
Size (D x L)71 x 69mm Weight283g
TiltN / A ShiftN / A
Stabilization ProtectionWeatherproof
Zoom Drive Mechanic Focus Drive AF with Quick-Shift
Zoom Mechanism External Focus Mechanism Internal
Hood Bayonet Focus Motor Internal
Perspective RectilinearIntroduced2013-11-06

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Here are the newest lenses matching or exceeding major specifications of the Pentax HD DA 20-40mm F/2.8-4 ED DC WR Limited. They cover the same focal-range with a similar aperture and are available for the same lens mount and imaging circle coverage.

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Pentax 20-40mm F/2.8-4 Facts


Weatherproof - Seals protect from dust, humidity and light splashing.Weatherproof - Seals protect from dust, humidity and light splashing.Zoom LensZoom LensRectilinear are normal lenses that show straight lines as straight lines.Rectilinear are normal lenses that show straight lines as straight lines.Thread size in milimeters for screw-on filters.Thread size in milimeters for screw-on filters.55Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).Quick-Shift Autofocus, also called Direct Manual-Focus (DMF).
20-40mm Focal-Range F/2.8-4 Max Aperture
55mm Filter Thread AF with Quick-Shift
Pentax K Mount 1.5 Max Crop-Factor
283g Lens Weight 71 x 69mm (D x L)
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