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KFvs A7R III

GearFrame · Updated March 2026

Pentax KF Pentax KF (2022) Starting from £700 new Best for Landscape & Outdoor View KF
VS
Sony A7R III Sony A7R III (2017) Starting from £1799 new Best for Landscape, studio & commercial photography View A7R III

GearScore™ Verdict — Which should you buy?

Landscape & Outdoor — KF (2022): The Pentax KF is a rare thing — a weather-sealed DSLR with in-body stabilisation and an articulating screen at an accessible price. Video is modest at 1080p/60p, but for outdoor and landscape photographers who prefer optical viewfinders and want real weather sealing, the KF delivers in a format that is increasingly hard to find.

Landscape, Studio & Commercial Photography — A7R III (2017): The camera that converted professionals to mirrorless — 42MP, IBIS, and 10fps in a body that still competes today.

↓ Full specifications below

KF (2022)

  • Outdoor and landscape photographers who want weather sealing at an accessible price
  • DSLR users who want IBIS and an articulating screen without switching systems
  • Pentax K-mount lens collectors who want a modern body for their glass
  • Photographers who prefer the natural feel of an optical viewfinder

A7R III (2017)

  • Landscape and studio photographers who need 42MP resolution at a used-price discount vs A7R IV
  • Canon/Nikon DSLR professionals considering a mirrorless switch at a lower investment
  • Commercial and product photographers who want full-frame resolution with IBIS for handheld work
  • Portrait photographers who want the sharpest possible full-frame files for large print work

Quick take: The a7r iii has the highest resolution at 42mp; the kf is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification KF (2022)A7R III (2017)
Price £700 £1,799
Sensor 24.2MP APS-C CMOS 42.4MP full-frame BSI Exmor R CMOS
Resolution 24.2MP 42.4MP
Video 1080p/60p 4K/30p (full-frame readout), 1080p/120p
Autofocus SAFOX 13 phase-detect AF with 11 points 399 phase-detect + 425 contrast AF points — real-time Eye AF
Stabilisation In-body Shake Reduction (SR II), up to 5.5 stops 5-axis IBIS — 5.5 stops
Burst Rate 6fps 10fps with AF/AE tracking
Battery Life ~410 shots (CIPA) ~650 shots (CIPA)
Weight 643g (body only) 650g body only
Dimensions 131.0 × 101.0 × 76.0mm 126.9 × 95.6 × 73.7mm
Weather Sealed Yes Yes
Viewfinder Optical pentamirror, 0.95× magnification, ~100% coverage EVF, 3.69M dots, 0.78× magnification
Screen 3.0" fully articulating touchscreen, 1.04M dots 3.0" touchscreen, tilting
Mount Pentax KF-mount Sony FE mount (full-frame E-mount)
Memory Cards Single SD UHS-I slot Dual SD slots (one UHS-II)
Connectivity USB, Wi-Fi, Bluetooth USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack
Genre KFA7R III
Landscape
8.5
9.0
Travel
8.0
Portrait
7.5
9.0
Wildlife
7.5
Casual
7.5
Street
6.0
7.0
Vlogging & Video
4.5
7.0
Sports & Action
6.0
Wedding
7.0
Sports
4.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side KF prices → A7R III prices →

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