EOS R7vs Pentax K-3 Mark IIIvs Sony A7R V

GearFrame · Updated March 2026

Canon EOS R7 Canon EOS R7 (2022) From £1399 Best for Wildlife, sports & action View EOS R7
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?

Wildlife, Sports & Action — EOS R7 (2022): The EOS R7 is one of the most complete APS-C cameras ever made. It combines a class-leading resolution sensor with best-in-class IBIS, 4K/60p video, weather sealing and 15fps burst. For wildlife, sports and action photographers on an APS-C budget, nothing else comes close.

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 R7 (2022)

  • Wildlife photographers who need reach, weather sealing and fast burst
  • Sports shooters upgrading from entry-level APS-C bodies
  • Video creators who need uncropped 4K/60p without a full-frame budget
  • Canon DSLR users looking to move to RF mount

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 eos r7 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS R7 (2022)Pentax K-3 Mark III (2021)Sony A7R V (2022)
Price £1,399 £1,699 £3,899
Sensor 32.5MP APS-C CMOS 25.7MP APS-C BSI CMOS (AA-filterless) 61MP full-frame BSI CMOS
Resolution 32.5MP 25.7MP 61.0MP
Video 4K/60p (uncropped), 4K/30p (oversampled from 7K), 1080p/120p 4K/30p, 1080p/60p 8K/25p, 4K/60p
Autofocus Dual Pixel CMOS AF II, 651 AF zones, subject recognition (people, animals, vehicles) SAFOX 13 phase-detect, 101-point (25 cross-type) AI subject recognition AF, 693-point phase-detect
Stabilisation 7-stop IBIS (8 stops with compatible IS lenses) 5.5-stop 5-axis IBIS (Shake Reduction III) 8-stop IBIS
Burst Rate 15fps mechanical, 30fps electronic (with blackout) 12fps 10fps mechanical / 7fps electronic
Battery Life ~770 shots (CIPA) 800 shots (CIPA) 530 shots (CIPA)
Weight 612g (body, battery, card) 820g body only 723g body only
Dimensions 132.0 × 90.4 × 91.7mm 134.5 × 103.5 × 73.5mm 131.3 × 96.4 × 82.4mm
Weather Sealed Yes Yes Yes
Viewfinder EVF, 2.36M dots, 0.72× magnification Optical pentaprism, 100% coverage, 1.05× magnification 0.64" Quad-XGA OLED EVF, 9.44M dots
Screen 3.0" vari-angle touchscreen, 1.62M dots 3.2" tilting touchscreen 3.2" multi-angle touchscreen
Mount Canon RF-mount Pentax KF-mount Sony FE (E-mount)
Memory Cards Dual SD UHS-II Dual SD UHS-II Dual CFexpress Type A / SD UHS-II
Connectivity USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth USB-C, Wi-Fi, Bluetooth USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3
⚡ Compare specs side by side EOS R7 prices → Pentax K-3 Mark III prices → Sony A7R V prices →

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