Canon
EOS R3 2021
Best for Sports & photojournalism professionals
£4999
new today at Clifton Cameras
Decision tools · Compare
EOS R3 vs Canon EOS R8 Mark II
Quick take: The Canon EOS R8 Mark II has the highest resolution at 24MP; the Canon EOS R8 Mark II 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 · 2021 | Canon EOS R8 Mark IICanon · 2026 |
|---|---|---|
| Price | £4,999 | £1,729Best |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 24.2MP full-frame CMOS |
| Resolution | 24.1MP | 24.2MPBest |
| Video | 6K RAW, 4K/120p, 1080p/180p | 4K/60p oversampled from 6K, 10-bit Canon Log 3/HLG |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Dual Pixel CMOS AF II with subject detection (people/animals/vehicles) |
| Stabilisation | 8-stop IBIS | 7.5-stop IBIS |
| Burst Rate | 30fps electronic / 12fps mechanical | 40fps electronicBest |
| Battery Life | 620 shots (CIPA)Best | 150 shots (CIPA, via EVF) |
| Weight | 1015g (body only) | 546g (with battery and card)Best |
| Dimensions | 150.0 × 142.6 × 87.2mm | — |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots |
| Screen | 3.2" fully articulating touchscreen | Vari-angle touchscreen |
| Mount | Canon RF | Canon RF-mount |
| Memory Cards | Dual CFexpress Type B | Single SD (UHS-II) |
| Connectivity | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | USB-C, HDMI (micro), 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
Canon EOS R8 Mark II
Portrait
8.1/10
8.3/10
Street
5.8/10
6.9/10
Travel
5.7/10
6.6/10
Wedding & Events
8.2/10
7.1/10
Vlogging & Video
5.4/10
6.7/10
Filmmaking
8.1/10
7.0/10
Documentary
7.8/10
7.7/10
Sports & Action
8.9/10
8.0/10
Landscape
6.3/10
6.4/10
Wildlife
8.7/10
8.3/10
Casual
4.6/10
5.8/10
Food
7.4/10
8.0/10
Macro
7.2/10
8.5/10
Architecture
6.5/10
6.6/10
Astrophotography
6.7/10
6.3/10
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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