EOS-1D X Mark IIIvs Sigma fp
Canon
EOS-1D X Mark III (2020)
Starting from £3500 new
Best for Professional Sports, Wildlife & Press Photography
View EOS-1D X Mark III
Sigma
Sigma fp (2019)
Starting from £1499 new
Best for Creative filmmakers & experimental photographers
View Sigma fp
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.
Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.
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
Sigma fp (2019)
- Filmmakers who want the world's smallest full-frame camera as a B or C camera
- Experimental photographers who want to build a unique, modular setup
- L-mount photographers who want an ultra-compact full-frame body
- Anyone who wants a conversation-starting camera that delivers serious results
Quick take: The sigma fp has the highest resolution at 25mp; the sigma fp 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) | Sigma fp (2019) |
|---|---|---|
| Price | £3,500 | £1,499 |
| Sensor | 20.1MP full-frame CMOS | 24.6MP full-frame Bayer CMOS |
| Resolution | 20.1MP | 24.6MP |
| Video | 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) | 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Contrast-detect AF with face/eye detection |
| Stabilisation | — | None (lens-based only) |
| Burst Rate | 16fps mechanical, 20fps live view | 18fps electronic |
| Battery Life | ~2850 shots (CIPA) | 200 shots (CIPA) |
| Weight | 1250g (body only) | 422g body only |
| Dimensions | 158 × 167.6 × 82.6mm | 112.6 × 69.9 × 45.3mm |
| Weather Sealed | Yes | No |
| Viewfinder | OVF 0.76× magnification, 100% coverage | None |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.15" fixed touchscreen |
| Mount | Canon EF | Leica L-mount |
| Memory Cards | Dual CFexpress Type B slots | Single SD UHS-II + CFexpress Type B (via adapter) |
| Connectivity | Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet | USB-C 3.1, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | EOS-1D X Mark III | Sigma fp |
|---|---|---|
| Sports & Action | ||
| Wildlife | — | |
| Wedding & Events | — | |
| Portrait | ||
| Vlogging & Video | ||
| Street | ||
| Landscape | ||
| Travel | — |
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