Pentax HD Pentax-D FA 50mm f/1.4 SDM AW Lens, Black, Bundle with 72mm Filter Kit, Cleaning Kit, Cleaning Cloth, Lens Cap Tether, Lens Cleaner

A large-aperture, standard lens assuring exceptional image quality with minimal aberrations

Star-series lens, developed in pursuit of uncompromising imaging performance
PENTAX has set the strictest standards for its Star-series lenses. Exceptional imaging performance, with distinctive visual elements such as a beautiful bokeh (defocus) effect, Large maximum F number, Outstanding optical performance and high-grade lens construction, providing a solid body construction, remarkable outdoor performance and superb maneuverability only when a lens satisfies all these standards is it designated as a top-of-the-line Star-series model. New-generation Star-series lenses are designed to meet even stricter standards than those established for existing models, to accommodate the much higher image quality and performance provided by advanced, next-generation digital SLR cameras.

High-performance, next-generation lens with a large F1.4 maximum aperture
The HD PENTAX-D FA 50mm F1.4 SDM AW was developed as a member of the next-generation Star series, which delivers very high image resolving power. It assures exceptional imaging performance from the center to the edges of the image field, even at open aperture, while providing a beautiful bokeh (defocus) effect and outstanding image rendition at close ranges. Its large maximum aperture of F1.4 delivers bright, clear images in portraiture and indoor photography, making it versatile in capturing a wide array of subjects and scenes.

State-of-the-art optical technology
The lens has been treated with PENTAX-developed Aero Bright Coating II - a lens-coating nanotechnology employing a super-low refractive film fabrication process. By coupling this advanced lens coating with the high-grade, multi-layer HD Coating, which reduces average reflectance in the visible ray spectrum to less than 50% of conventional multi-layer coatings, this lens effectively reduces flare and ghost images to a minimum even in demanding lighting conditions such as backlighting.

Dustproof, weather-resistant construction
Developed as an All Weather (AW) model, this lens features a dependable dustproof, weather-resistant structure with eight special seals to prevent the intrusion of water and dust into the lens interior. When paired with a PENTAX weather-resistant digital SLR camera body, it forms a durable, reliable digital imaging system that performs superbly in demanding outdoor shooting settings.

Newly developed ring-type ultrasonic motor SDM
The lens features a newly developed ring-type ultrasonic motor SDM, which generates almost twice the torque of a conventional lens-driving motor. Thanks to this enormous driving power, the lens assures smooth, high-speed shifting of the heavy, multi-element rear lens group during focusing operation.