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EOS-1D X Mark IIIvs GR IIIx HDF

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
Ricoh GR IIIx HDF Ricoh GR IIIx HDF (2024) Starting from £999 new Best for Street & documentary photography with a distinctive aesthetic View GR IIIx HDF

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.

Street & Documentary Photography With A Distinctive Aesthetic — GR IIIx HDF (2024): The GR IIIx with a built-in dream filter — for photographers who want the GR's legendary APS-C quality with an added layer of analogue magic.

↓ 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

GR IIIx HDF (2024)

  • GR IIIx fans who want the HDF bloom effect without using post-processing
  • Street photographers who want a distinctive, instantly recognisable aesthetic
  • Film photography enthusiasts who want to replicate analogue optical character digitally
  • GR III owners ready to upgrade to the 40mm equivalent perspective

Quick take: The gr iiix hdf has the highest resolution at 24mp; the gr iiix hdf is the most affordable; only the eos-1d x mark iii is weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification EOS-1D X Mark III (2020)GR IIIx HDF (2024)
Price £3,500 £999
Sensor 20.1MP full-frame CMOS 24.2MP APS-C CMOS
Resolution 20.1MP 24.2MP
Video 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) 1920 × 1080 / 60fps
Autofocus 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) Phase/contrast hybrid CDAF with Snap Focus
Stabilisation 3-axis Shake Reduction (SR) — 4 stops
Burst Rate 16fps mechanical, 20fps live view 4fps continuous
Battery Life ~2850 shots (CIPA) ~200 shots (CIPA)
Weight 1250g (body only) 262g body only
Dimensions 158 × 167.6 × 82.6mm 122.5 × 69.5 × 35.2mm
Weather Sealed Yes No
Viewfinder OVF 0.76× magnification, 100% coverage None — rear LCD only
Screen 3.2" fully articulating touchscreen, 4.15M dots 3.0" fixed LCD touchscreen, 1.037M dots
Mount Canon EF Fixed GR Lens 26.1mm f/2.8 (40mm equivalent)
Memory Cards Dual CFexpress Type B slots Single SD/SDHC/SDXC 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 IIIGR IIIx HDF
Sports & Action
10.0
Wildlife
9.0
4.0
Wedding & Events
9.0
Portrait
8.0
7.0
Vlogging & Video
7.0
Street
7.0
9.0
Landscape
7.0
7.0
Travel
9.0
Sports
4.0

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 → GR IIIx HDF prices →

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