EOS-1D X Mark IIIvs GR IIIx HDF
Canon
EOS-1D X Mark III (2020)
Starting from £3500 new
Best for Professional Sports, Wildlife & Press Photography
View EOS-1D X Mark III
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.
Who should buy what
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 |
Suitability by genre
| Genre | EOS-1D X Mark III | GR IIIx HDF |
|---|---|---|
| Sports & Action | — | |
| Wildlife | ||
| Wedding & Events | — | |
| Portrait | ||
| Vlogging & Video | — | |
| Street | ||
| Landscape | ||
| Travel | — | |
| Sports | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with EOS-1D X Mark III
Camera family history