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HD Pentax-DA 11-18mm f/2.8 ED DC AW Ultra Wide Angle Zoom Lens

HD Pentax-DA 11-18mm f/2.8 ED DC AW Ultra Wide Angle Zoom Lens

Product Code: 5241305D


The HD Pentax-DA 11-18mm f/2.8 ED DC AW Lens delivers exceptional optical performance with a large f/2.8 aperture throughout the entire zoom range and edge to edge sharpness for landscapes, astro and more.

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We Love

  • High quality ultra wide angle zoom lens with bright constant aperture throughout the range
  • Excellent build quality with weather sealing and freeze-proof construction for harsh environments
  • Complex optical design renders excellent detail and resolution across the entire frame
  • Advanced lens coatings enhance image quality with well controlled flare and ghosting
  • Nine-blade diaphragm renders soft out of focus areas thanks to a close minimum focus distance
Reasons to buy from Park Cameras

HD Pentax-DA 11-18mm f/2.8 ED DC AW Lens Summary

The new-generation Star series HD Pentax-DA 11-18mm F/2.8 ED DC AW Lens is an ultra wide angle zoom for crop sensor APS-C format K-mount DSLR cameras. The lens delivers exceptional optical performance with a large f/2.8 aperture throughout the entire zoom range. This allows you to shoot at wide apertures in low light situations as well as separating subjects from their background with a shallow depth of field. With an equivalent focal range of 17mm to 27.5mm in 35mm format this lens excels at subjects including landscapes, architecture, astro photography and interiors amongst others.

Key features

  • Pentax HD Coating
  • SP (Super Protect) Coating
  • AW (All Weather Resistant)
  • Quick-shift Focus System (QFS/M)
  • DC (DC Motor)
  • Focus Clamp Function
  • Weather resistant structure
  • Nine-blade diaphragm
  • 16 elements in 11 groups

As a Star series model, this joins other high end Pentax lenses designed to be future-proof with existing and future high resolution sensors. It includes high-end features designed to maximise image quality including HD and Super Protect coatings, a DC focus motor and nine-bladed aperture diaphragm.

HD Pentax-DA 11-18mm F/2.8 ED DC AW Lens In More Detail

Large f/2.8 maximum aperture

This ultra-wide-angle zoom lens provides a focal length of 11-18 millimetres (equivalent to 17mm to 27.5mm in 35mm format) produce magnificent, dynamic images despite its small size. With its maximum constant F2.8 aperture over the entire zoom range, the lens delivers sharp, bright astro, aurora and star images. A minimum focusing distance of just 0.3 meters allows the photographer to capture true-to-life close-up images by emphasising the depth of field with an effectively defocused background.

Enhance imaging power with HD Coating

This lens features high-grade, multi-layer HD Coating which reduces the average reflectance in the visible ray spectrum to less than 50% of conventional multi-layer coatings. It effectively minimises flare and ghosting in images even during demanding lighting conditions such as backlighting.

Optimised for landscapes and star photography

The unique Focus Clamp Mechanism allows the photographer to lock the lens’s focal point, even when the focus ring is rotated. This improves the lens’s operability in photographing such subjects as landscapes and star-lit scenes, which demand high-precision focusing during extended exposures. It also has special features for improved operability and versatility in outdoor shooting, such as a space for wrapping heating wires around the lens barrel to prevent dew condensation, without affecting focus-ring operation; and a metallic frame structure to more effectively transmit the heat of the heating device to the lens.

Dust-proof, weather-resistant and -10 ℃ cold-resistant construction

Developed as an All Weather (AW) model, this 11-18mm zoom lens features a dust-proof, weather-resistant construction to prevent water and dust particle intrusion into the lens interior. By pairing it with a weather-resistant digital SLR camera body like the Pentax K-3 Mark III Camera (Black), this assures a highly durable, reliable digital imaging system that performs superbly in demanding shooting settings — even in rain or mist, or at locations prone to water splashes. Anticipating use in cold locations, this lens assures solid, trouble-free operation even at freezing temperatures.

What’s in the box

  • HD Pentax-DA 11-18mm F/2.8 ED DC AW Lens K Mount
  • Lens Hood: PH-RBF82
  • Lens Cap: O-LC82
  • Lens Case: S120-150
  • Lens Mount Cap K

HD Pentax-DA 11-18mm F/2.8 ED DC AW Lens Specifications


Equivalent to 17-27.5mm in 35mm format (when attached to PENTAX APS-C size DSLR cameras)






9 Rounded diaphragm


104-76° on crop sensor cameras


16 elements in 11 groups










approx. 704g


approx. 90mm x 100mm

Offers: N/A
Offer Category: Camera Lenses
Offer Product Type: Pentax Lenses K mount
Autofocus: N/A
Aperture ring: N/A
Constant Aperture: Yes
Lens CIPA Image stabilization rating: N/A
Colour: N/A
Diameter (mm): N/A
Length (mm): N/A
Weight (g): N/A
Distance scale: N/A
DoF scale: N/A
Elements: N/A
Environmental Sealing: N/A
Focus distance limiter: N/A
Focal length: N/A
Focus method: N/A
Filter Thread: N/A
Full time manual: N/A
Groups: N/A
Hood supplied: N/A
Lens Image stabilization: N/A
Lens mount: N/A
Lens Materials: N/A
Maximum focal length: N/A
Maximum magnification: N/A
Maximum aperture (number): N/A
Maximum aperture (text): N/A
Max Format size: N/A
Minimum focal length: N/A
Lens Minimum focus distance (m): N/A
Minimum aperture (number): N/A
Minimum aperture (text): N/A
Motor type: N/A
Number of diaphragm blades: N/A
Power zoom: N/A
Special elements / coatings: N/A
Tripod collar: N/A
Lens type: N/A
Wide/Tele: N/A
Lens Level: N/A
Best For: N/A
Zoom lock: N/A
Zoom method: N/A
Notes: N/A

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Condition guide

Our used products are subject to wear and tear in comparison to brand new products. This also applies to accessories that are supplied with the camera including batteries which may have a lower optimum performance level/life expectancy.

  • Like New – The equipment is in a condition as if you have just bought it from the manufacturer. The item is still considered to be ‘Like New’ even without the original packaging. The product has been fully tested and is in perfect working order.
  • Excellent – The equipment should be close to being ‘Like New’ but there may be some small cosmetic blemishes that lower its grade. The product has been fully tested and is in perfect excellent order.
    • Cameras – Should have no marks on the LCD screen
    • Lenses – Should have no marks on the elements or dust within the lens
  • Very Good – The equipment may have some slight cosmetic wear to the paintwork and cosmetic blemishes  with only light signs of use and the product has been fully tested and is in great working order.
    • Cameras – The LCD screen may have small signs of wear that does not affect its display
    • Lenses – The mount of the lens will start to show signs of wear
  • Good – The equipment is showing more obvious signs of cosmetic wear and blemishes, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen may have scratches or wear that is starting to affect the display.
    • Lenses – May have slight dust inside that does not affect images. The mount shows signs of use.
  • Well Used – The equipment will show significant signs of wear. The paintwork will be coming away in large areas exposing the metal work, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen is heavily worn either by de-lamination or has scratches to it. Rubber grips are starting to come away from the body.
    • Lenses – The lens has dust inside that may affect images. The rubber zoom/focus ring is coming away from the barrel of the lens.

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