The HD PENTAX-FA 50mmF1.4 is a single-focus, standard lens designed for use with K-mount digital SLR cameras. Its latest, high-grade, multi-layer HD Coating ensures high-contrast images with edge-to-edge sharpness. The HD Coating effectively reduces average reflectance and improves light transmittance, delivering clear, high-contrast images with minimal flare and ghost images, even in demanding lighting conditions such as backlighting.

The new exterior design of this lens is similar to that of the latest DA- and D FA-series lenses, while retaining the compact dimensions of its base model, the smc PENTAX-FA 50mm F1.4. When mounted on a PENTAX digital SLR camera body, this lens can be used as a 50mm standard lens in the full-frame format, or a 76.5mm medium-telephoto lens in the APS-C format.

The large F1.4 open aperture of the HD PENTAX-FA 50mmF1.4 produces images with a very shallow depth of field. Additionally, the water- and grease-repellent SP (Super Protect) Coating applied to the front surface of the lens makes it easier to wipe off water or stains.

The eight-blade diaphragm control mechanism of this lens produces a soft, natural bokeh (defocus) effect from open aperture to F2.8, and also minimizes the streaking effect of point light sources. Designed to be fully compatible with older K-mount digital SLR cameras and film-format AF SLR cameras, this lens allows the photographer to retain all camera functions, thanks to the aperture ring installed on the lens body, and the mechanism designed to couple the lens with the camera's motor-driven, in-body AF system.

The accessories included with the HD PENTAX-FA 50mmF1.4 are the Lens Cap O-LC49 and the Lens Mount Cap K.

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