Canon EOS R3vs D850

GearFrame · Updated March 2026

Canon Canon EOS R3 Canon Canon EOS R3 (2021) Starting from £5999 new Best for Sports & photojournalism professionals View Canon EOS R3
VS
Nikon D850 Nikon D850 (2017) Starting from £2199 new Best for Landscape, wildlife & professional studio photography View D850

GearScore™ Verdict — 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.

Landscape, Wildlife & Professional Studio Photography — D850 (2017): The finest DSLR ever made — 45MP, 9fps, and nearly 2000 shots per charge in a body that still outperforms most mirrorless cameras for battery life.

↓ Full specifications below

Canon EOS R3 (2021)

  • Professional sports and photojournalism photographers
  • Canon users who need the fastest burst and most reliable AF in the system
  • R5 users who want a pro-grade grip and faster shooting speed
  • Event photographers who need eye-controlled AF and dual card slots

D850 (2017)

  • Nikon F-mount lens owners who want the highest resolution DSLR before switching to mirrorless
  • Landscape and wildlife photographers who value the optical viewfinder and outstanding battery life
  • Professional photographers who need 45MP resolution without the price of a medium format system
  • Photojournalists and event photographers with a large F-mount lens investment

Quick take: The d850 has the highest resolution at 46mp; the d850 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS R3 (2021)D850 (2017)
Price £5,999 £2,199
Sensor 24.1MP full-frame BSI stacked CMOS 45.7MP full-frame BSI-CMOS
Resolution 24.1MP 45.7MP
Video 6K RAW, 4K/120p, 1080p/180p 4K UHD/30p, 1080p/120p
Autofocus Dual Pixel CMOS AF II with Eye Control AF 153-point AF system (99 cross-type) — Multi-CAM 20K
Stabilisation 8-stop IBIS None (relies on VR lenses)
Burst Rate 30fps electronic / 12fps mechanical 9fps (7fps with tilt screen AF)
Battery Life 620 shots (CIPA) ~1840 shots (CIPA) — outstanding
Weight 1015g body only 915g body only
Dimensions 150.0 × 142.6 × 87.2mm 146 × 124 × 78.5mm
Weather Sealed Yes Yes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fps Optical pentaprism — 0.75× magnification, 100% coverage
Screen 3.2" fully articulating touchscreen 3.2" tilting touchscreen, 2.36M dots
Mount Canon RF Nikon F mount
Memory Cards Dual CFexpress Type B Dual slots — XQD and SD UHS-II
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN USB 3.0, Bluetooth, Wi-Fi, 3.5mm mic & headphone jacks
Genre Canon EOS R3D850
Sports & Action
9.0
Wildlife
9.0
9.0
Photojournalism
9.0
Vlogging & Video
7.0
7.0
Wedding & Events
7.0
Travel
4.0
7.0
Landscape
9.0
Portrait
9.0
Sports
9.0
⚡ Compare specs side by side Canon EOS R3 prices → D850 prices →

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