Pentax HD DA* 11-18mm f/2.8 ED DC AW Wide-Angle Lens
The Pentax HD DA* 11-18mm f/2.8 ED DC AW is a 11–18mm f/2.8 lens designed for Pentax K mount cameras. Used copies start from $845.58 on GearFocus, with buyer protection on every purchase.

Pentax HD DA* 11-18mm f/2.8 ED DC AW Wide-Angle Lens
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Lens Overview — Pentax HD DA* 11-18mm f/2.8 ED DC AW
Key Features — Pentax HD DA* 11-18mm f/2.8 ED DC AW
11-18mm f/2.8 Zoom Range: Covers an ultra wide-angle focal length range with a constant f/2.8 aperture, maintaining consistent exposure settings throughout the zoom.
DA* Star Series Build: Part of Pentax's premium Star lens lineup, indicating high optical quality standards and robust construction.
All-Weather Sealing: Weather-resistant construction protects against dust and moisture, matching the environmental sealing found on Pentax's weather-sealed DSLR bodies.
ED Glass Elements: Extra-low Dispersion glass elements reduce chromatic aberration and color fringing for sharper, more color-accurate images across the frame.
HD Coating: Pentax's HD (High Definition) multi-layer lens coating reduces flare and ghosting, particularly useful in wide-angle shooting where light sources often enter the frame.
DC Autofocus Motor: Internal DC motor drives autofocus quietly and efficiently, supporting smooth operation during both stills and video shooting.
Lens Specifications — Pentax HD DA* 11-18mm f/2.8 ED DC AW
| Spec | Detail |
|---|---|
| Use Cases | Astrophotography, Travel |
| Lens Type | Ultra Wide-Angle |
| Format | APS-C / DX |
| Zoom/Prime | Zoom |
| Focal Length | 11–18mm |
| Maximum Aperture | f/2.8 |
| Camera System | DSLR |
| Lens Mount | Pentax K |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 82mm |
Description — Pentax HD DA* 11-18mm f/2.8 ED DC AW
The Pentax HD DA* 11-18mm f/2.8 is an ultra wide-angle zoom built for APS-C format DSLR cameras on the Pentax K mount. Spanning 11mm to 18mm, it covers a broad wide-angle range that suits architectural work, landscapes, and tight interior spaces. The standout feature is its constant f/2.8 maximum aperture, which holds steady across the entire zoom range and keeps exposure predictable whether you are shooting at the wide end or zoomed in to 18mm.
Both autofocus and manual focus modes are available, offering versatility for everything from fast-moving subjects to precise manual control in video or studio work. The lens takes 82mm filters, so photographers investing in a filter system should plan accordingly. At 704 grams, it is a solid, substantial piece of glass.
There is no optical image stabilization built into the lens, which is a notable consideration for low-light handheld work. For Pentax K mount shooters working with APS-C bodies who want a fast, wide zoom, this lens covers the ultra wide-angle end of the range with a consistent bright aperture.
Pros — Pentax HD DA* 11-18mm f/2.8 ED DC AW
- ✓Constant f/2.8 maximum aperture across the full 11-18mm zoom range supports consistent exposure in varied light
- ✓Ultra wide-angle zoom range (11-18mm) on APS-C format provides a genuinely broad field of view
- ✓Supports both autofocus and manual focus, offering flexibility for different shooting styles
Cons — Pentax HD DA* 11-18mm f/2.8 ED DC AW
- ✗No image stabilization, so handheld shooting in low light relies entirely on in-body stabilization or technique
- ✗704g weight is substantial for a wide-angle zoom and may add fatigue on long shoots
- ✗82mm filter thread size means filters are larger and more expensive than smaller thread alternatives








