Product Overview

Built for serious shooters, the Pentax-D FA* 85mm f/1.4 ED SDM AW is a no-nonsense portrait and short-telephoto prime that delivers brutally sharp files straight out of the camera. The fast f/1.4 aperture gives you heaps of control over depth of field, so you can carve your subject out of the background with creamy bokeh while still holding fine detail in eyes, hair and texture. On full-frame it’s a classic 85mm portrait length; on APS-C it behaves like a punchy 130mm for tighter headshots and compressed landscapes.

Optically, this Star-series lens is stacked: 12 elements in 10 groups with three Super ED elements and an aspherical element to keep chromatic aberrations, fringing and distortion in check. HD and SP coatings fight flare, ghosting and grime, so you can shoot backlit scenes, coastal sunsets or dusty footy grounds with confidence. The ring-type SDM autofocus motor is quick, quiet and precise, backed up by Pentax’s Quick-Shift system for instant manual override. All-weather sealing and a robust build mean you can keep working in rain, dust and cold without babying your gear – exactly what you want when you’re chasing real-world shots, not spec sheets.

Key Features

• Bright f/1.4 maximum aperture enables fast shutter speeds and shallow depth of field, delivering crisp subject separation and reliable low-light performance.
• 85mm short-telephoto focal length is optimised for portraits, providing flattering perspective and comfortable working distance on full-frame and APS-C Pentax DSLRs.
• Advanced optical design with three Super ED elements and one aspherical element minimises chromatic aberration and distortion for high-contrast, edge-to-edge sharpness.
• HD and SP coatings reduce flare, ghosting and surface smudging, maintaining clear, high-contrast images even in backlit or harsh lighting conditions.
• Ring-type SDM autofocus motor and Quick-Shift focus system offer fast, quiet AF with instant manual override, ideal for both stills and video work.
• All Weather (AW) dustproof, weather-resistant construction with multiple seals allows confident shooting in rain, dust and challenging outdoor environments.
• Rounded 9-blade diaphragm produces smooth, natural bokeh, enhancing background blur for professional-looking portraits and subject isolation.
• Internal focusing design keeps the lens length constant and supports better balance when using filters or shooting handheld.
• Electromagnetic diaphragm (KAF4 mount) provides precise, consistent exposure control, particularly beneficial for video and continuous shooting.
• 82mm front filter thread and robust build quality make the lens practical for professional use with common filters and accessories.