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EOS R3 vs Sony FX5

Quick take: The EOS R3 has the highest resolution at 24MP; the Sony FX5 is the most affordable.

16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras

How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.

Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more

Verdictwhich should you buy?

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

Who should buy what
EOS R3 (2021)
is the right camera for you if…
  • 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
Full specificationsthe better value in each row is highlighted
Specification EOS R3Canon · 2021Sony FX5Sony · 2026
Price £4,999£4,699Best
Sensor 24.1MP full-frame BSI stacked CMOS16.6MP full-frame stacked Exmor RS CMOS
Resolution 24.1MPBest16.6MP
Video 6K RAW, 4K/120p, 1080p/180p5K/60p open-gate, 4K/120p, internal RAW/X-OCN, 10-bit Log, triple base ISO
Autofocus Dual Pixel CMOS AF II with Eye Control AFAI-powered hybrid phase-detect AF (759 points) with subject tracking
Stabilisation 8-stop IBISIBIS with Dynamic Active Mode
Burst Rate 30fps electronic / 12fps mechanicalBest10fps
Battery Life 620 shots (CIPA)Best~105 min actual recording, ~170 min continuous (LCD)
Weight 1015g (body only)734g (with battery and card)Best
Dimensions 150.0 × 142.6 × 87.2mm—
Weather Sealed YesYes
Viewfinder 0.76" OLED EVF, 5.76M dots, 120fpsOptional detachable EVF (DVF-EL1), OLED
Screen 3.2" fully articulating touchscreenFully articulating touchscreen (4-axis arm)
Mount Canon RFSony E-mount
Memory Cards Dual CFexpress Type BCFexpress Type A + SDXC (dual)
Connectivity USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LANUSB-C, full-size HDMI, Wi-Fi, Bluetooth

Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.

How they score by genreengine base scores out of 10
Genre
EOS R3
Sony FX5
Portrait
8.1/10
6.9/10
Street
5.8/10
5.3/10
Travel
5.7/10
6.2/10
Wedding & Events
8.2/10
7.0/10
Vlogging & Video
5.4/10
6.1/10
Filmmaking
8.1/10
8.7/10
Documentary
7.8/10
8.3/10
Sports & Action
8.9/10
6.8/10
Landscape
6.3/10
5.1/10
Wildlife
8.7/10
6.8/10
Casual
4.6/10
5.1/10
Food
7.4/10
7.4/10
Macro
7.2/10
5.2/10
Architecture
6.5/10
6.1/10
Astrophotography
6.7/10
6.7/10

Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →

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