Pentax HD D FA 85mm f1.4 ED SDM AW

HD PENTAX-D FA 85mm F1.4ED SDM AW

• New and fast SDM ring motor autofocus
• Very high input aperture F1.4
• Rugged and weather resistant
• State-of-the-art optical technology with perfect edge-to-edge sharpness
• 9 blades with round aperture for natural bokeh

High speed F1.4 for perfect portraits and special applications.
In addition to the highest quality standards of the D FA series, a lens of the moderate telephoto focal length must also meet very special requirements. Here, the maximum aperture of F1.4 is an important prerequisite not only for portrait shots with effectively defocused backgrounds and associated bokeh, but also for many other applications, such as low-light and handheld shots or in special genres such as concert and reportage photography.

New generation of the "Star" series of high-performance lenses, for perfect image reproduction

Best values in resolution, contrast and imaging performance, while avoiding aberrations such as chromatic aberrations and distortions, in harmony with a well-balanced bokeh and the depth effect typical of PENTAX, are intended to enable realistic photographs. At the same time, the new lens has already been designed with future sensor types in mind in order to ensure the expected increase in image quality today.

State-of-the-art optical technology

The HD PENTAX-D FA 85mm F1.4 ED SDM AW features three Super ED (Extra-low Dispersion) glass optical elements to effectively minimize chromatic aberration and a molded-glass aspherical optical element to effectively compensate for spherical and chromatic aberrations as well as field curvature to deliver extra-clear, high-contrast images with edge-to-edge sharpness without color fringing, even at open aperture. In addition, distortion, at a focusing distance of up to four meters, is reduced to almost zero. This enables clearly defined, distortion-free images over the entire focusing range, from the minimum focusing distance to infinity. This underscores the property as an excellent portrait lens.

* HD is the abbreviation for High Definition.

Dustproof and weatherproof construction

PENTAX cameras know hardly any limits and so special demands are also made on the lenses. The AW (All Weather) design with eight special sealing rings prevents moisture and dust from penetrating the inside of the lens. Together with an appropriately weather-resistant digital SLR camera from PENTAX, the lens forms a long-lasting and reliable shooting system.
shooting system that delivers outstanding performance even in demanding shooting situations such as rain, fog, splashing water or sub-zero temperatures as low as -10°C.
performance. In addition, the front lens is coated with SP (Super Protect) coating, which reduces dirt and moisture adhesion and facilitates cleaning, e.g. of splashing water or greasy substances.

Super-fast autofocus with new SDM motor

The conventional PENTAX SDM (pencil type) ultrasonic motors are small and thus develop rather low torque that has to be amplified with additional gears. Since the heavy focus unit of the HD PENTAX-D FA 85mm F1.4 ED SDM AW has more optical elements than other lenses, a larger ring-shaped Supersonic Direct Drive (SDM) autofocus motor was developed specifically for this lens.

This generates more torque, approximately 1.3 times the torque of the unit installed in the HD PENTAX-D FA 50mm F1.4 SDM AW. As a result, the new SDM ultrasonic ring motor ensures flawless, fast autofocus operation that is approximately 10x faster overall than previously used SDM motors in PENTAX lenses.