Product Overview

Built for shooters who actually get out there and use their gear, the HD PENTAX-D FA 21mm f/2.4 ED Limited DC WR is a compact ultra‑wide prime that punches well above its weight. On full frame it gives you a sweeping 92° angle of view, perfect for big skies, rugged coastlines and tight city streets. On APS‑C bodies it lands around a classic 32mm equivalent, ideal for everyday walk‑around work. The fast f/2.4 aperture keeps you shooting confidently in low light and lets you separate your subject with a smooth, natural bokeh that still holds the atmosphere of the scene.

Optically, this Limited‑series lens is all business: 11 elements in 8 groups with four ED and one Super ED glass element to keep colour fringing and fuzziness in check right out to the edges. HD and SP coatings cut flare, ghosting, water and oil, so you can point it into tricky light or cop a bit of sea spray without stressing. The built‑in DC motor and Quick‑Shift Focus System give you quiet, responsive AF with instant manual override, while the weather‑resistant, all‑metal build is made to handle Aussie conditions from frosty dawns to dusty outback tracks. If you want a premium wide‑angle that’s tough, sharp and genuinely enjoyable to shoot with, this 21mm Limited is the sort of lens you leave on the camera and don’t think twice about.

Key Features

• 21mm ultra-wide-angle prime lens provides a broad 92° field of view, ideal for expansive landscapes, architecture and immersive environmental scenes.
• Bright f/2.4 maximum aperture enhances low-light performance and allows creative depth-of-field control for subject isolation and smooth background blur.
• Advanced optical design with 11 elements in 8 groups, including ED and Super ED glass, minimises chromatic aberration for sharp, high-contrast images edge to edge.
• HD multi-layer and SP (Super Protect) coatings reduce flare, ghosting and surface contamination, delivering clear images with rich colour and easier cleaning in the field.
• Weather-resistant (WR) construction with multiple seals helps protect against rain, mist and splashes, supporting reliable shooting in demanding outdoor conditions.
• Built-in DC autofocus motor and Quick-Shift Focus System enable fast, quiet AF with instant manual override, giving precise control for both stills and video.
• Electromagnetic KAF4 diaphragm with 8 rounded blades provides accurate exposure control and attractive, circular bokeh from wide open to mid apertures.
• Close focusing down to 0.18 m with 0.26x maximum magnification lets you capture dramatic close-ups with exaggerated perspective and detailed foreground subjects.
• High-grade aluminium barrel and integrated hood deliver a robust, premium build that withstands regular professional use while maintaining a compact 74 x 89 mm form factor.
• 67 mm front filter thread supports common filter sizes, making it easy to add ND, polarising or protective filters for creative and practical shooting needs.