Versatile Wide-Angle Zoom. The Pentax HD DA 11-18mm f/2.8 ED DC AW’s combination of a wide 17-27.7mm equivalent zoom range and bright f/2.8 aperture make it a great choice for astrophotography, sports photography, and landscape photography. It’s also well-suited to working in less-than-ideal lighting.

Advanced Optical Design. The HD DA 11-18mm’s optical design incorporates two aspherical elements, two extra-low dispersion elements, and one aspherical element made of extra-low dispersion glass to provide high resolving power and minimal optical aberrations. Each element’s Aero Bright II coating combats ghosting and flare for greater contrast and color neutrality.

DC Autofocus Motor. This lens features Pentax’s DC autofocus system, which provides fast, silent, and accurate performance. You can use its integrated Focus Clamp mechanism to lock the focusing position in place, and a quick-shift focusing clutch lets you easily switch between autofocus and manual focus.

Durable Construction. The 11-18mm features the DA-series’ standard fully weather-sealed build, with Pentax’s SP-coating for a dust- and water-resistant front element.