Canon EOS R3vs OM-3
Canon
Canon EOS R3 (2021)
Starting from £5999 new
Best for Sports & photojournalism professionals
View Canon EOS R3
VS
OM System
OM-3 (2024)
Starting from £999 new
Best for Travel, outdoor & adventure photography
View OM-3
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.
Travel, Outdoor & Adventure Photography — OM-3 (2024): The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact body.
Who should buy what
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
OM-3 (2024)
- Outdoor and adventure photographers who need weather sealing and compact size
- Wildlife and bird photographers wanting improved AF over the OM-5
- Travel shooters who want a rugged, lightweight MFT system
- OM-5 or E-M5 III owners wanting better autofocus without going to the OM-1
Quick take: The canon eos r3 has the highest resolution at 24mp; the om-3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS R3 (2021) | OM-3 (2024) |
|---|---|---|
| Price | £5,999 | £999 |
| Sensor | 24.1MP full-frame BSI stacked CMOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 24.1MP | 20.4MP |
| Video | 6K RAW, 4K/120p, 1080p/180p | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | Dual Pixel CMOS AF II with Eye Control AF | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | 8-stop IBIS | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 30fps electronic / 12fps mechanical | 10fps mechanical, 30fps electronic with AF |
| Battery Life | 620 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 1015g body only | 414g (with battery) |
| Dimensions | 150.0 × 142.6 × 87.2mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.76" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.2" fully articulating touchscreen | 3.0" fully articulating touchscreen |
| Mount | Canon RF | Micro Four Thirds |
| Memory Cards | Dual CFexpress Type B | Single SD UHS-II slot |
| Connectivity | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | Canon EOS R3 | OM-3 |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Photojournalism | — | |
| Vlogging & Video | ||
| Wedding & Events | — | |
| Travel | ||
| Landscape | — | |
| Street | — | |
| Portrait | — |
More comparisons with Canon EOS R3
Camera family history