Pentax HD D FA* 50mm f/1.4 SDM AW

FOCAL 50mmAPERTURE f/1.4WEIGHT 910gFILTER 72mm

PortraitsWeather sealed

New ≈£1,099

Used at MPB*£389–419

Overview

The Pentax HD D FA* 50mm f/1.4 SDM AW is a full frame 50mm f/1.4 prime lens for the Pentax K mount. It weighs about 910g and takes 72mm filters, and it's weather sealed.

It's a strong choice for portraits. Around 85mm equivalent with a fast aperture (f/1.8 or brighter) for background blur.

In our database it fits 7 camera bodies natively. Approximate new price is £1,099; used at MPB it sells for £389–419 depending on condition and mount (checked 5 November 2026).

Specifications

Brand	Pentax
Mounts	Pentax K (First-party)
Coverage	Full frame
Focal length	50mm
Equivalent on Full frame	50mm
Equivalent on APS-C (×1.5)	75mm
Maximum aperture	f/1.4
Focus	Autofocus
Stabilisation	No
Weather sealing	Yes
Weight	≈910 g
Filter thread	72 mm
Approx. new price	£1,099
Used at MPB (Pentax K)	£389–419

Compatible camera bodies

7 native

Pentax K-1 Mark II2018 · Full frameNativeFirst-party · used from £1,049 Pentax K-3 Mark III2021 · APS-CNativeFirst-party · new ≈—Pentax K-12016 · Full frameNativeFirst-party · used from £784 Pentax KP2017 · APS-CNativeFirst-party · used from £464 Pentax K-702016 · APS-CNativeFirst-party · new ≈—Pentax KF2022 · APS-CNativeFirst-party · new ≈£849 Pentax K-3 Mark III Monochrome2023 · APS-CNativeFirst-party · new ≈—

Alternatives to compare

Canon RF 28-70mm f/2.8 IS STM28-70mm · f/2.8 · 495g · RF≈£1,099 new · used from £1,009

Samyang AF 35-150mm f/2-2.835-150mm · f/2-2.8 · 1090g · E, L≈£1,099 new · used from £739

Sigma 24-70mm f/2.8 DG OS HSM Art24-70mm · f/2.8 · 1020g · EF, F≈£1,099 new · used from £304

Tamron SP 24-70mm f/2.8 Di VC USD G224-70mm · f/2.8 · 905g · EF, F≈£1,099 new · used from £319

Where to buy

*Used prices on this site come from MPB on 5 November 2026. MPB only lists what it has bought in, so "None listed" means none in their stock that day, not that Pentax HD D FA* 50mm f/1.4 SDM AW is hard to find. Check these trusted UK dealers too.

MPB ↗UsedOnline used specialist with condition grading and a 12-month warranty. Prices on this site are MPB snapshots.Wex Photo Video ↗New & usedOne of the largest UK photo retailers: official UK stock, a big used department and trade-ins.Park Cameras ↗New & usedSpecialist with stores in West Sussex and London; official UK stock.London Camera Exchange ↗New & usedHigh-street chain across UK towns: inspect used gear in person.Clifton Cameras ↗NewAuthorised UK dealer for Canon, Sony, Nikon and more, with UK warranties.Cotswold Cameras ↗New · grey importCheaper parallel imports. No UK manufacturer warranty; store-backed guarantee instead.

See example photos

Real-world shots taken with the Pentax HD D FA* 50mm f/1.4 SDM AW lens. Results are searches on each site, so check the camera or lens listed in each photo's details.

Flickr: most interesting Flickr groups Wikimedia Commons “Taken with” category 500px

Frequently asked questions

Which cameras is the Pentax HD D FA* 50mm f/1.4 SDM AW compatible with?

It's available for Pentax K. Native bodies here include Pentax K-1 Mark II, Pentax K-3 Mark III, Pentax K-1, Pentax KP, Pentax K-70, Pentax KF.

Is the Pentax HD D FA* 50mm f/1.4 SDM AW weather sealed?

Yes, it has dust and moisture resistance.

Does the Pentax HD D FA* 50mm f/1.4 SDM AW have image stabilisation?

No. Use a camera with in-body stabilisation (IBIS) for steady hand-held shots.

What is the Pentax HD D FA* 50mm f/1.4 SDM AW best for?

Portraits. Around 85mm equivalent with a fast aperture (f/1.8 or brighter) for background blur.

Compare with similar lenses

HD FA 50mm f/1.8 vs HD D FA* 50mm f/1.4 SDM AW