Canon EOS R3vs Canon EOS R5 Mark IIvs Z6 III

GearFrame · Updated March 2026

Canon Canon EOS R3 Canon Canon EOS R3 (2021) From £5999 Best for Sports & photojournalism professionals View Canon EOS R3
VS
Canon Canon EOS R5 Mark II Canon Canon EOS R5 Mark II (2024) From £4299 Best for Hybrid shooters & professionals View Canon EOS R5 Mark II
VS
Nikon Z6 III Nikon Z6 III (2024) From £2199 Best for Hybrid video & action View Z6 III

Which should you buy?

Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.

Hybrid Shooters & Professionals — Canon EOS R5 Mark II (2024): The most complete hybrid camera Canon has ever made — 45MP stacked BSI, 30fps burst, 8K/60p RAW, and Canon's legendary Dual Pixel AF in one body.

Hybrid Video & Action — Z6 III (2024): Partial-stacked FF sensor for near-zero blackout, 6K RAW video, and 60fps burst — Nikon's most capable hybrid.

↓ Full specifications below

Canon EOS R3 (2021)

  • You shoot sport, motorsport, wildlife, or news at a professional level
  • You need Canon's most reliable and fastest autofocus available
  • You need extreme weather sealing for demanding shooting conditions

Canon EOS R5 Mark II (2024)

  • You're a working photographer or filmmaker who needs high-resolution stills and professional video
  • You shoot commercial, editorial, or high-end portrait work
  • You want the absolute best Canon mirrorless has to offer

Z6 III (2024)

  • You need the best all-round full-frame camera in Nikon's Z system
  • You shoot in challenging or low light and need exceptional high-ISO performance
  • You want a hybrid body that genuinely excels at both professional stills and video

Quick take: The canon eos r5 mark ii has the highest resolution at 45mp; the z6 iii is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)Canon EOS R5 Mark II (2024)Z6 III (2024)
Price £5,999 £4,299 £2,199
Sensor 24.1MP full-frame BSI stacked CMOS 45MP full-frame BSI stacked CMOS 24.5MP Full-frame Partial-stacked CMOS
Resolution 24.1MP 45.0MP 24.5MP
Video 6K RAW, 4K/120p, 1080p/180p 8K/60p RAW, 4K/120p, Cinema RAW Light 6K/60p RAW, 4K/120p, 4K/60p oversampled, N-Log, 10-bit
Autofocus Dual Pixel CMOS AF II with Eye Control AF Dual Pixel CMOS AF II, AI subject tracking Phase-detect, 273 points, subject detection (human/animal/vehicle/aircraft)
Stabilisation 8-stop IBIS 8-stop IBIS (coordinated with IS lenses) 5-axis IBIS, 6.0 stops
Burst Rate 30fps electronic / 12fps mechanical 30fps electronic / 12fps mechanical 20fps mechanical, 60fps electronic
Battery Life 620 shots (CIPA) 570 shots (CIPA) ~380 shots (CIPA)
Weight 1015g body only 746g body only 760g body only
Dimensions 150.0 × 142.6 × 87.2mm 138.5 × 101.2 × 93.5mm 138.5 × 101.5 × 74.0mm
Weather Sealed Yes Yes Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps 0.64" OLED EVF, 5.76M dots, 120fps EVF, 5.76M dots, 0.90× magnification
Screen 3.2" fully articulating touchscreen 3.2" fully articulating touchscreen 3.2" fully articulating touchscreen
Mount Canon RF Canon RF Nikon Z-mount (full-frame)
Memory Cards Dual CFexpress Type B CFexpress Type B + SD UHS-II Dual slots: CFexpress Type B + SD UHS-II
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth USB-C 3.2, Bluetooth, Wi-Fi
⚡ Compare specs side by side Canon EOS R3 prices → Canon EOS R5 Mark II prices → Z6 III prices →

Compare pairs from this group