Pentax Announce HD FA* 50mm f/1.4 Lens

Pentax have announced a new prime lens with a large aperture for K-mount cameras.

29/06/2018 - 08:59


Pentax have announced a new standard wide-aperture prime lens for their K-mount cameras, including the K-1 Mark II

The HD Pentax-D FA* 50mm f/1.4 SDM AW is the latest addition for the star (*) range of lenses boasting the best image performance of all Pentax lenses. It will be available from 20 July with an RRP of £1199.99. 

PENTAX conducted an extensive review of its in-house standards for the premier Star series for the new lens, demanding the maximum reduction of various aberrations in order to deliver the highest image quality. PENTAX also designed the lens to provide excellent imaging performance with all compatible camera bodies - including next-generation digital SLR cameras which will feature improved image quality and performance.

The new lens delivers the superb imaging power demanded of a new-generation, high-performance Star-series lens, delivering exceptional resolving power from the centre to the edges of the image field, even when set to open aperture. Thanks to PENTAX-original lens coating technologies, including the latest Aero Bright Coating II for exceptionally low reflection, and the high-grade HD Coating, it produces extra-sharp, high-contrast images free of flare and ghost images. Its dustproof, weather-resistant body also makes it extremely dependable and durable for shooting in demanding outdoor conditions.

Key Features:

1. New-generation, 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 line-up designed to deliver extra-clear, high-contrast images with edge-to-edge sharpness by reducing various aberrations to a minimum. After conducting an extensive review of the Star-series standards, PENTAX has designed this lens to deliver 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 range. Developed as the first model of the new-generation Star-series 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 hand-held shooting of indoor scenes.

2. 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 reflection 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. 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 minimises distortion even at a focusing distance of approximately one metre, it produces crisp, distortion-free images over the entire focusing range, from the minimum focusing distance to infinity.

* A state-of-the-art, PENTAX-original lens coating technology developed from nanotechnology. It applies a silica aerogel layer with a uniform porous structure over a regular multi-coating layer to reduce surface reflections across a wide wavelength range and produce crisp, high-quality images.
**HD stands for High Definition.

3. Dustproof, weather-resistant construction
Developed as an AW (All Weather) 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 shooting situations — including rain or mist, or in locations prone to water splashes or spray.

4. 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, there is a smooth, high-speed shift of the heavy, multi-element rear lens group during focusing operation.

5. Other features

  • Nine-blade, round-shaped diaphragm to produce a natural, beautiful bokeh (defocus) effect up to F2.8 aperture setting, while minimizing the streaking effect of point light sources
  • A minimum focusing distance of 40 centimetres, effective in capturing images with a defocus effect
  • Electromagnetic diaphragm-control mechanism,* for flawless, high-precision exposure control during movie recording
  • SP (Super Protect) coating to keep the front surface free of dust and spots

* This mechanism is available when the lens is mounted on a K-1 Mark II, K-1, K-3 II, K-3, KP, K-70, K-50, K-S2 or K-S1 camera body.


More Pentax lenses:

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Link Posted 29/06/2018 - 09:48
It can now be pre-ordered from SRS in the UK.
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