EOS-1D X Mark IIIvs EOS R8vs PowerShot G7X 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
Canon
PowerShot G7X Mark III (2019)
Starting from £749 new
Best for Vlogging, content creation & travel video
View PowerShot G7X Mark III
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.
Full-Frame Entry — EOS R8 (2023): Canon's most affordable full-frame mirrorless — 4K/60p 10-bit and class-leading Dual Pixel AF at an accessible entry price.
Vlogging, Content Creation & Travel Video — PowerShot G7X Mark III (2019): The finest vlogging compact available — pocket-sized 4K, a flip screen, mic input, and USB live streaming in one remarkably capable package.
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
EOS R8 (2023)
- Photographers wanting full-frame image quality at the lowest RF price
- EOS RP owners upgrading to better autofocus and modern video specs
- Beginners who want to start on full-frame without overspending
- Travel photographers who want a lightweight full-frame RF body
PowerShot G7X Mark III (2019)
- Vloggers and content creators who need 4K video, a flip screen, and a mic input in a pocket-sized camera
- Travellers who want the best possible compact video quality without carrying an interchangeable-lens system
- Live streamers who want USB streaming capability built into a compact camera
- Smartphone upgraders who want significantly better video quality in something nearly as pocketable
Quick take: The eos r8 has the highest resolution at 24mp; the powershot g7x mark iii 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) | EOS R8 (2023) | PowerShot G7X Mark III (2019) |
|---|---|---|---|
| Price | £3,500 | £1,099 | £749 |
| Sensor | 20.1MP full-frame CMOS | 24.2MP Full-frame BSI CMOS | 20.1MP 1-inch BSI-CMOS |
| Resolution | 20.1MP | 24.2MP | 20.1MP |
| Video | 5.5K RAW, 4K 60fps (crop), 4K 60fps (full-frame via firmware) | 4K/60p oversampled 10-bit, FHD/180p | 4K/30p, 1080p/120p — no crop in 4K |
| Autofocus | 191-point all cross-type OVF AF; 525-point Dual Pixel CMOS AF (Live View) | Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking | Dual Pixel CMOS AF — fast, reliable, with Eye AF |
| Stabilisation | — | None (no IBIS) | Optical IS — lens-based |
| Burst Rate | 16fps mechanical, 20fps live view | 6fps mechanical, 40fps electronic | 20fps (with fixed AF/AE) |
| Battery Life | ~2850 shots (CIPA) | ~220 shots (CIPA) | ~235 shots (CIPA) |
| Weight | 1250g (body only) | 461g body only | 304g |
| Dimensions | 158 × 167.6 × 82.6mm | 132.5 × 86.1 × 70.0mm | 105.5 × 60.9 × 41.4mm |
| Weather Sealed | Yes | No | No |
| Viewfinder | OVF 0.76× magnification, 100% coverage | EVF, 2.36M dots, 0.59× | None |
| Screen | 3.2" fully articulating touchscreen, 4.15M dots | 3.0" fully articulating touchscreen | 3.0" fully tilting touchscreen (180° flip for self-facing) |
| Mount | Canon EF | Canon RF mount (full-frame) | Fixed 24-100mm equivalent f/1.8-2.8 lens |
| Memory Cards | Dual CFexpress Type B slots | Single SD UHS-II slot | Single SD UHS-I slot |
| Connectivity | Wi-Fi 5GHz, Bluetooth 4.2, USB-C 3.1 Gen 2, Ethernet | USB-C, Bluetooth, Wi-Fi | USB-C, Bluetooth, Wi-Fi, 3.5mm mic jack, USB live streaming |
Suitability by genre
| Genre | EOS-1D X Mark III | EOS R8 | PowerShot G7X Mark III |
|---|---|---|---|
| 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 →
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Camera family history