📷 Cameras 🔭 Lenses 🎒 Accessories 🏷 Brands

EOS-1D X Mark IIIvs OM-3

GearFrame · Updated March 2026

Canon EOS-1D X Mark III Canon EOS-1D X Mark III (2020) Starting from £3500 new Best for Professional Sports, Wildlife & Press Photography View EOS-1D X Mark III
VS
OM System OM-3 OM System OM-3 (2024) Starting from £999 new Best for Travel, outdoor & adventure photography View OM-3

GearScore™ Verdict — Which should you buy?

Professional Sports, Wildlife & Press Photography — EOS-1D X Mark III (2020): Canon's DSLR masterpiece — 20fps live view, 5.5K RAW, 191 cross-type AF points, and dual CFexpress. Almost certainly the finest optical viewfinder camera ever made.

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.

↓ Full specifications below

EOS-1D X Mark III (2020)

  • Sports and wildlife photographers with a Canon EF lens collection
  • Professionals who prefer the optical viewfinder experience
  • Press photographers who need 20fps, weather sealing, and Ethernet
  • Canon historians who want to mark the end of the EOS-1D DSLR era

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 om-3 has the highest resolution at 20mp; the om-3 is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)OM-3 (2024)
Price £3,500 £999
Sensor 20.1MP full-frame CMOS 20.4MP Live MOS Micro Four Thirds
Resolution 20.1MP 20.4MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 4K/60p (10-bit), C4K/30p, 1080p/120p
Autofocus 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) Phase-detect AF — subject recognition (human, animal, bird, vehicle)
Stabilisation IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses)
Burst Rate 16fps mechanical, 20fps live view 10fps mechanical, 30fps electronic with AF
Battery Life ~2850 shots (CIPA) ~400 shots (CIPA)
Weight 1250g (body only) 414g (with battery)
Dimensions 158 × 167.6 × 82.6mm 122.3 × 84.6 × 49.4mm
Weather Sealed Yes Yes
Viewfinder OVF 0.76× magnification, 100% coverage EVF, 2.36M dots, 0.74× magnification
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" fully articulating touchscreen
Mount Canon EF Micro Four Thirds
Memory Cards Dual CFexpress Type B slots Single SD UHS-II slot
Connectivity Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet USB-C, Wi-Fi, Bluetooth
Genre EOS-1D X Mark IIIOM-3
Sports & Action
10.0
Wildlife
9.0
9.0
Wedding & Events
9.0
Portrait
8.0
7.0
Vlogging & Video
7.0
7.0
Street
7.0
9.0
Landscape
7.0
9.0
Travel
9.0

GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →

⚡ Compare specs side by side EOS-1D X Mark III prices → OM-3 prices →

More comparisons with EOS-1D X Mark III

Camera family history