Lens mounts · Pentax K
Pentax K mount: cameras, lenses & what adapts
Pentax's DSLR mount since 1975, still used on new K-series bodies, with in-body stabilisation on every current camera.
Full frame imaging circle· 45.46mm flange distance· SLR / DSLR, since 1975
Cameras on Pentax K
Every body in the catalogue that takes Pentax K lenses, newest first. Prices are the best new price from a UK retailer we track.
Lens range
43 Pentax K lenses in the catalogue. Native means made by a company that also makes Pentax K bodies; third-party is everyone else.
Best Pentax K lenses by genre
Top three per genre from the lens engine, scored on this lens's own format. The same scores you see on each lens page; Gear Builder re-scores them for the exact body you pick.
Flange distance & adapting
A plain adapter is a spacer: it can only add distance between lens and sensor. Glass from a mount with a longer flange distance adapts cleanly onto Pentax K; glass from a shorter one needs corrective optics.
- Type
- SLR / DSLR
- Coverage
- Full frame
- Crop factor
- 1.00×
- Maker
- Pentax
- Introduced
- 1975
Lenses you can put on a Pentax K body
10 other mounts adapt onto Pentax K without corrective glass. Focus and framing only; autofocus and aperture control depend on the adapter.
Adapters we list for Pentax K bodies
- Urth M42 Lens Mount to Pentax K Camera Mount M42 lenses · manual
- Urth Nikon F Lens Mount to Pentax K Camera Mount Nikon F lenses · manual
Where Pentax K lenses can go
Current camera mounts that accept Pentax K glass: 8 with a plain or thin adapter.
How deep is the Pentax K lens range?
The lens-ecosystem scores Camera Match uses when it ranks Pentax K bodies for wildlife, sports, portrait, macro, food, architecture and astro. Scored 0–10 from the native lenses buyable new, with the reasoning shown.
HD DA 55-300 PLM (82-450 equiv on APS-C, ~£400), HD D FA 150-450 (225-675 on APS-C, ~£1,999), DA* 300 f/4 (450), HD DA 560 f/5.6; Sigma/Tamron no longer make K-mount, and Pentax AF-C tracking is well behind mirrorless. Source ↗
HD D FA* 85 f/1.4 (127 equiv on APS-C, 85 on K-1 II), HD FA 77 f/1.8 Limited (115 on APS-C), DA* 55 f/1.4 (82 equiv) — three qualifying primes. Source ↗
HD D FA Macro 100 f/2.8 ED AW (1:1, ~£550), smc D FA 50 f/2.8 Macro (1:1), HD DA 35 f/2.8 Macro Limited (1:1), Laowa 100 2× and 15 shift in K. Source ↗
HD D FA 15-30 f/2.8 (15 on full frame), HD DA* 11-18 f/2.8 (16.5-27 equiv on APS-C, just misses), Irix 11 f/4 and 15 f/2.4 K, Laowa 15 f/4.5 Shift and 20 f/4 Shift in K; no Pentax tilt-shift. Source ↗
HD D FA 15-30 f/2.8, HD DA* 11-18 f/2.8 (16.5 equiv), Samyang 14 f/2.8 K, Irix 15 f/2.4 K, HD DA 14 f/2.8 (21 equiv) — and the bodies' GPS Astrotracer removes the need for a tracker. Source ↗
Batteries, cards & filters for Pentax K
The battery models and card types Pentax K bodies use, and the most common filter threads on Pentax K lenses. Each links to the cameras or lenses that share it and what to buy.
Next step
Lens counts and picks come from the catalogue and the lens engine, so they change as lenses are added. Ecosystem scores are researched per mount with a source and feed Camera Match's lens-range feature. How scoring works · All mounts