EOS R6 Mark IIvs Pentax K-3 Mark IIIvs Sony A7R V

GearFrame · Updated March 2026

Canon EOS R6 Mark II Canon EOS R6 Mark II (2022) From £2099 Best for Portraits & action View EOS R6 Mark II
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) From £1699 Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark III
VS
Sony Sony A7R V Sony Sony A7R V (2022) From £3899 Best for Landscape, studio & commercial View Sony A7R V

Which should you buy?

Portraits & Action — EOS R6 Mark II (2022): 40fps burst, 8-stop IBIS, and Canon's best-in-class Dual Pixel AF — exceptional for action, sports, and portrait work.

Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.

Landscape, Studio & Commercial — Sony A7R V (2022): 61 megapixels and 8-stop IBIS in a weather-sealed body — the reference resolution camera for commercial and landscape professionals.

↓ Full specifications below

EOS R6 Mark II (2022)

  • You want a do-everything full-frame body for weddings and events
  • You need reliable subject tracking across stills and fast-moving video
  • You shoot both photos and video professionally and need a single body that handles both
  • You want Canon's colour science with a modern mirrorless system

Pentax K-3 Mark III (2021)

  • You're a committed DSLR photographer with significant investment in Pentax glass
  • You shoot in extreme weather conditions and place build quality and reliability above everything
  • You prefer optical viewfinder performance and want the best modern APS-C DSLR available

Sony A7R V (2022)

  • You need the highest resolution in Sony's full-frame mirrorless lineup
  • You shoot landscape, architecture, product photography, or high-end fashion professionally
  • You want exceptional resolution paired with Sony's best-in-class autofocus system

Quick take: The sony a7r v has the highest resolution at 61mp; the pentax k-3 mark iii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS R6 Mark II (2022)Pentax K-3 Mark III (2021)Sony A7R V (2022)
Price £2,099 £1,699 £3,899
Sensor 24.2MP Full-frame BSI CMOS 25.7MP APS-C BSI CMOS (AA-filterless) 61MP full-frame BSI CMOS
Resolution 24.2MP 25.7MP 61.0MP
Video 4K/60p 10-bit oversampled, 6K RAW out, FHD/180p 4K/30p, 1080p/60p 8K/25p, 4K/60p
Autofocus Dual Pixel CMOS AF II, 6072 zones, deep-learning subject tracking SAFOX 13 phase-detect, 101-point (25 cross-type) AI subject recognition AF, 693-point phase-detect
Stabilisation 5-axis IBIS, 8.0 stops (coordinated with IS lenses) 5.5-stop 5-axis IBIS (Shake Reduction III) 8-stop IBIS
Burst Rate 12fps mechanical, 40fps electronic 12fps 10fps mechanical / 7fps electronic
Battery Life ~760 shots (CIPA) 800 shots (CIPA) 530 shots (CIPA)
Weight 670g body only 820g body only 723g body only
Dimensions 138.4 × 98.4 × 88.4mm 134.5 × 103.5 × 73.5mm 131.3 × 96.4 × 82.4mm
Weather Sealed Yes Yes Yes
Viewfinder EVF, 3.69M dots, 0.76× magnification Optical pentaprism, 100% coverage, 1.05× magnification 0.64" Quad-XGA OLED EVF, 9.44M dots
Screen 3.0" fully articulating touchscreen 3.2" tilting touchscreen 3.2" multi-angle touchscreen
Mount Canon RF mount (full-frame) Pentax KF-mount Sony FE (E-mount)
Memory Cards Dual SD UHS-II slots Dual SD UHS-II Dual CFexpress Type A / SD UHS-II
Connectivity USB-C 3.1, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3
⚡ Compare specs side by side EOS R6 Mark II prices → Pentax K-3 Mark III prices → Sony A7R V prices →

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