Pentax HD FA 50mm F/1.4 SDM AW Lens

The Pentax HD FA* 50mm F/1.4 SDM AW is a new-generation, high-performance Star-series lens designed to deliver extra-clear, high-contrast images with edge-to-edge sharpness by compensating various aberrations to a minimum.

High-performance Star-series lens with large F1.4 maximum aperture
This lens has been developed as a new-generation member of the high-performance Star series — a lineup designed to deliver extra-clear, high-contrast images with edge-toedge sharpness by compensating various aberrations to a minimum. After conducting an extensive review of the Starseries standards, PENTAX has designed this lens to assure greatly improved resolving power, looking ahead to its use with more advanced, next-generation camera bodies. It provides exceptionally high imaging performance even at open aperture, in addition to a beautiful bokeh (defocus) effect and an outstanding image rendition at close ranges. Developed as the first model of the new-generation Starseries lenses, this large-aperture standard lens boasts an extra-large F1.4 maximum aperture, useful with many different subjects in a range of applications, including portraiture with an effectively defocused background, and handheld shooting of indoor scenes.

State-of-the-art optical technology
The lens is 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 multilayer coatings — this lens effectively reduces flare and ghost images to a minimum even in demanding lighting conditions such as backlighting. By incorporating three super-low dispersion glass elements and one aspherical element in its optics, it effectively compensates chromatic and spherical aberrations, and produces brilliant, high-contrast images with edge-to-edge sharpness. Since it minimizes distortion even at a focusing distance of approximately one meter, it produces crisp, distortion-free images over the entire focusing range, from the minimum focusing distance to infinity.

Dustproof, weather-resistant construction
Developed as an AW (All Weather) model, this lens featuresa 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 weatherresistant digital SLR camera body, it forms a durable, reliable digital imaging system that performs superbly in demanding shooting settings — even in rain or mist, or at locations prone to water splashes or spray.

Newly developed ring-type SDM
This lens features a newly developed ring-type SDM (Supersonic Direct-drive Motor), which generates as much as 7.5 times the torque of the conventional SDM installed in existing lenses. Thanks to this enormous driving power, the lens assures a smooth, high-speed shift of the heavy, multielement rear lens group during focusing operation.

• High Aperture of F1.4 with beautiful Bokeh
• Engineered for the use on PENTAX 35mm Full Frame Cameras
• HD-Superprotect Lens Coating
• All Weather Construction with 8 special seals to prevent the intrusion of water and dust
• Newly developed ring-type SDM for fastest AF speed and reliable focus
• Electromagnetic diaphragm-control mechanism, for fl awless, high-precision exposure control during movie recording