Pentax HD D FA* 50mm f1.4 SDM AW

$1,599.99

The HD F-FA* 50mm f1.4 SDM AW from Pentax was developed for the next generation of high-resolution, full-frame & crop cameras, and features outstanding resolving power.
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The new HD PENTAX-D FA* 50mm F1.4 SDM AW is the first Star-series lens developed under Pentax’s renewed performance evaluation criteria. This large-aperture, standard lens assures exceptional image quality with minimal aberrations.

High-performance, next-generation lens with large F1.4 maximum aperture


The HD PENTAX-D FA* 50mm F1.4 SDM AW was developed as part of the new next-generation Star series, delivering high image resolving power. It assures exceptional imaging performance from the center to the edges of the image field, even at open aperture, while providing a beautiful bokeh effect and outstanding image rendition at close ranges. Its large maximum aperture of F1.4 delivers bright, clear images in portraiture and indoor photography, making it versatile in capturing a wide array of subjects and scenes.

State-of-the-art optical technology

The lens has been 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 multi-layer coatings, this lens effectively reduces flare and ghost images to a minimum even in demanding lighting conditions such as backlighting.

Dustproof, weather-resistant construction

Developed as an All Weather (AW) model, this lens features a dependable dustproof,
weather-resistant structure with eight special seals to prevent the intrusion of water and dust in 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 outdoor shooting settings.

Newly developed ring-type ultrasonic motor SDM

The lens features a newly developed ring-type ultrasonic motor SDM, which generates almost twice the torque of a conventional lens-driving motor. Thanks to this enormous driving power, the lens assures smooth, high-speed shifting of the heavy, multi-element rear lens group during focusing operation.

Rounded Diaphragm

Nine-blade rounded diaphragm to produce a natural bokeh (defocus) effect at up to F2.8 aperture setting, while minimizing the streaking effect of point light sources.

Quick-Shift Focus System

Allows for instant switching from auto-focus to manual-focus operation.

SP Coating

SP (Super Protect) Coating applied to the front surface of the lens to effectively repel
water and grease.

  • Focal Length
    50mm
  • Lens Construction
    15 elements in 9 groups
  • Maximum Aperture
    f1.4
  • Minimum Aperture
    f16
  • Minimum Focus Distance
    0.4m (1.31')
  • Filter Size
    72mm
  • Weatherproof
    Weather resistant
  • Lens Mount
    Pentax K-Mount
  • Dimensions
    8 x 10.6cm (3.1 x 4.2")
  • Weight
    910g (955g with hood)
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