Product Overview

Built for demanding shooters, the Pentax HD DA* 11-18mm f/2.8 ED DC Lens is a serious bit of glass for anyone running a K-mount APS-C body. With an ultra‑wide 11–18mm range (17–27.5mm equivalent) and a constant f/2.8 aperture, it’s made for real-world work – from tight interiors and sweeping landscapes to astro missions under a clear outback sky. Edge‑to‑edge sharpness, low distortion and excellent control of flare and ghosting mean you can push this lens hard and still walk away with clean, high‑contrast files that hold up in print and on screen.

Weather‑sealed, dust‑resistant and cold‑rated, the DA* 11–18mm is ready for the sort of conditions Aussie shooters actually face – coastal spray, desert dust and chilly alpine nights. The DC autofocus motor is quick and confident, with a focus clamp and quick‑shift manual override when you need precise control. Add the 82mm front filter thread, robust build and practical handling, and you’ve got a dependable ultra‑wide zoom that earns its place in the kit bag of working photographers and serious enthusiasts alike.

Key Features

• Ultra-wide 11–18mm zoom (17–27.5mm equivalent on APS-C) captures expansive landscapes, interiors and night skies without stepping back.
• Bright, constant f/2.8 aperture across the zoom range delivers reliable low-light performance and smooth background blur for creative depth control.
• Advanced optical design with ED and aspherical elements minimises distortion, chromatic aberration and edge softness for crisp, high-resolution images.
• HD and Aero Bright II coatings reduce flare and ghosting, preserving contrast and colour accuracy when shooting into backlight or bright city lights.
• Weather-resistant AW construction with multiple seals and SP-coated front element resists dust, moisture, water and grease for dependable outdoor use.
• Built-in DC autofocus motor provides fast, quiet focusing, while Quick-Shift and Focus Clamp functions give precise manual control when you need it.
• Rounded 9-blade diaphragm produces smooth, natural-looking bokeh and attractive rendering of point light sources in night scenes.
• Minimum focusing distance of 0.3 m and 0.1x magnification let you get close to foreground subjects for dramatic wide-angle perspectives.
• Dedicated space for attaching lens heaters helps prevent condensation and freezing during cold-weather or astrophotography sessions.
• Compact 90 × 100 mm design and 704 g weight balance well on APS-C Pentax bodies, making it easy to carry for all-day shooting.