Pentax HD Pentax-D FA 85mm f/1.4 ED SDM AW Lens, Bundle with ProOptic 82mm Filter Kit, Cleaning Kit, Lens Cap Tether, Lens Wrap, Lens Cleaner, Flex Lens Shade, PC Software Kit

When it comes to capturing stunning, high-contrast images with edge-to-edge sharpness, the HD Pentax-D FA 85mm F1.4 ED SDM AW Lens from Ricoh Imaging is a top-tier choice. This advanced, large-aperture, medium-telephoto lens is a proud member of the new-generation Pentax Star lens series, specifically designed for use with Pentax K-mount digital SLR cameras.

This innovative lens boasts the highest imaging performance across all Pentax lens lineups, thanks to its high-grade Super ED (Extra-low Dispersion) glass optical elements and an aspherical optical element. These features, combined with a multi-layer HD Coating and a newly designed, large ring-type SDM, ensure the delivery of extra-clear images by effectively minimizing various aberrations, including axial chromatic aberration. This results in the prevention of purple fringing in backlit situations, providing you with flawless, high-speed autofocus operation and exceptional imaging power.

The HD Pentax-D FA 85mm F1.4 ED SDM AW Lens is renowned for its high imaging performance even at open aperture, producing a beautiful bokeh (defocus) effect and outstanding image rendition at close ranges. The extra-large F1.4 maximum aperture is versatile and ideal for various subjects and applications, including portraiture with a defocused background, handheld shooting of indoor scenes, and scenic photography.

State-of-the-art optical technology is at the heart of this lens. It incorporates three Super ED glass optical elements to effectively minimize chromatic aberration, a glass-molded aspherical optical element to compensate for spherical and comatic aberrations, and field curvature. This lens also reduces distortion to nearly zero at a focusing distance of four meters, delivering well-defined, distortion-free images over the entire focusing range.

The lens is treated with 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 effectively minimizes flare and ghost images even in demanding lighting conditions such as backlighting.

The lens features a newly designed, large ring-type SDM to efficiently drive the focusing mechanism, which consists of a larger number of optical elements than ordinary lenses. This new SDM assures flawless, high-speed autofocus operation.

As an All Weather (AW) model, this lens boasts a dependable dustproof, weather-resistant structure with eight special seals to prevent water intrusion. When paired with a Pentax dustproof, weather-resistant digital SLR camera body, it forms a durable, reliable digital imaging system that performs superbly in demanding outdoor shooting settings.

The lens also features a nine-blade, round-shaped diaphragm that produces a natural, beautiful bokeh effect up to the F2.8 aperture setting, while minimizing the streaking effect of point light sources. An electromagnetic diaphragm control mechanism provides high-precision exposure control during video recording. The Quick-Shift Focus System allows for instant switching from auto-focus to manual-focus operation. Lastly, the lens is treated with a Super Protect (SP) Coating on the front surface to effectively repel water and grease, ensuring your lens stays clean and ready for action.