Product Highlights
  • f/1.4 - f/16 Aperture Range
  • Full-Frame Format
  • 12/10 Elements/Groups
  • 9 Aperture Blades
  • SDM Supersonic Direct-Drive Motor
  • Dust & Water Resistant
  • 82mm Filter Diameter
  • KAF4 Mount
Pentax HD Pentax-D FA 85mm f/1.4 ED SDM AW Lens Pentax HD Pentax-D FA 85mm f/1.4 ED S...
Web Availability: Special Order
This product will be Special Ordered just for you from the manufacturer. We do not stock this item due to its uniqueness or import schedule. Special Order items are Final Sale, see our Return Policy for details.
Vistek Locations
  • Toronto Special Order
  • Ottawa Special Order
  • Mississauga Special Order
  • Calgary Special Order
  • Edmonton Special Order
Please call and verify availability at the store as stock changes daily.

Lease this for: $101.50 Learn More


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

This large-aperture, mediumtelephoto lens is the second single-focus lens of the newgeneration PENTAX Star (★) lens series. Designed for use with PENTAX K-mount digital SLR cameras, this series boasts the highest imaging performance of all PENTAX lens lineups. 

Featuring high-grade Super ED (Extra-low Dispersion) glass optical elements and an aspherical optical element, multi-layer HD Coating and a newly designed, large ring-type SDM, this lens delivers extra-clear, high-contrast images with edge-to-edge sharpness by compensating various aberrations to a minimum— in particular, effectively minimizing axial chromatic aberration to prevent the generation of purple fringing in backlit situations, exceptional imaging power and flawless, high-speed autofocus operation.

Key Features:

  • High-performance, new-generation lens with large F1.4 maximum aperture
  • State-of-the-art optical technology
  • Newly designed, large ring-type SDM
  • Dustproof, weather-resistant construction
  • Rounded Diaphragm
  • Electromagnetic diaphragm control
  • Quick-Shift Focus System
  • SP Coating

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

The HD PENTAX-D FA* 85mm F1.4ED SDM AW is designed to deliver extra-clear, high-contrast images with edge-to-edge sharpness by compensating various aberrations to a minimum, while greatly enhancing resolving power. It provides exceptionally high imaging performance even at open aperture, a beautiful bokeh (defocus) effect and outstanding image rendition at close ranges. The extra-large F1.4 maximum aperture is useful with many different subjects in a range of applications, including portraiture with an effectively defocused background, handheld shooting of indoor scenes and scenic photography. 

State-of-the-art optical technology

This lens incorporates three Super ED (Extra-low Dispersion) glass optical elements to effectively minimize chromatic aberration, a glassmolded aspherical optical element to effectively compensate for spherical and comatic aberrations and field curvature to deliver extra-clear, high-contrast images with edge-to-edge sharpness, even at open aperture. It also reduces distortion to nearly zero at a focusing distance of four meters to deliver well-defined, distortion-free images over the entire focusing range, from the minimum focusing distance to infinity. The lens is also 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, effectively reducing flare and ghost images to a minimum even in demanding lighting conditions such as backlighting.

Newly designed, large ring-type SDM

In order to deliver the highest image quality possible over the entire focusing range — from the minimum focusing distance to infinity — this lens features an newly designed, large ring-type SDM to efficiently drive the focusing mechanism, which consists of a larger number of optical elements than ordinary lenses, and is required to shift heavy rear-optical-element groups in unison. Generating a torque approximately 1.3 times that of the unit installed in the HD PENTAX-D FA*50mm f1.4 SDM AW, this new SDM assures flawless, high-speed autofocus operation. 

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 into the lens interior. When paired with a PENTAX dustproof, weather-resistant digital SLR camera body, it assures a durable, reliable digital imaging system that performs superbly in demanding outdoor shooting settings. 

Rounded Diaphragm

Nine-blade, round-shaped diaphragm produces a natural, beautiful bokeh (defocus) effect up to the F2.8 aperture setting, while minimizing the streaking effect of point light sources

Electromagnetic diaphragm control

Electromagnetic diaphragm control mechanism* provides highprecision exposure control during video recording

* Available when mounted on a PENTAX K-1 Mark II, K-1, K-3 II, K-3, KP, K-70, K-50, K-S2 or K-S1 camera body.

Quick-Shift Focus System

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

SP (Super Protect) Coating

SP Coating applied to the front surface of the lens to effectively repel water and grease.

What's Included

HD Pentax-D FA 85mm f1.4ED SDM AW Lens
PH-RBG82 Lens Hood
Front Lens Cap
Rear Lens Cap
S130-160 Lens Case


Product Specifications

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

Focal Length 85mm Equivalent to 130mm in 35mm format
(when attached to PENTAX APS-C size DSLR cameras)
Maximum Aperture F1.4
Minimum Aperture F16
Lens Construction 12 elements in 10 groups
Angle of View (Diagonal) 28.5°
(when attached to PENTAX APS-C size DSLR cameras)
Mount KAF4
Minimum Focusing Distance  0.85m (2.8ft.)
Maximum Magnification 0.12x
Filter Diameter 82mm
Diaphragm Control  Electromagnetic diaphragm
Fully automatic
Number of Diaphragm Blades 9
Rounded diaphragm (85mm: F1.4-F2.8)
Aperture Ring N/A
Tripod Mount N/A
Maximum Diameter x Length Approx. 95 x 123.5 mm (approx. 3.7 x 4.9")
Weight Approx. 1255 g (44.3 oz.)
* Without Hood

Approx. 1355 g (47.8 oz.)
* With Hood
Temperature -10°C~40°C (14°F~104°F)
Humidity 85% or less (no condensation)

Questions & Answers

Pentax HD Pentax-D FA 85mm f/1.4 ED SDM AW Lens

Looking for a personal touch? Not sure if you are choosing the right product? Our staff is here to help.

We want to make sure you get the right product for your needs.
Our staff will help you understand the options available so you can be confident in your purchase.

As the country’s leading Professional Imaging retailer, Vistek is in the perfect position to ensure you make the right choice.
Contact us today for a personal touch.