Decision tools · Compare
EOS 40D vs EOS R6 Mark III
Quick take: The EOS R6 Mark III has the highest resolution at 32MP; the EOS 40D is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
Canon
EOS R6 Mark III 2025
Best for Hybrid photo & video professionals, sports and wildlife shooters
£2699
new today at Clifton Cameras
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Verdictwhich should you buy?
EOS R6 Mark III — Hybrid Photo & Video Professionals, Sports And Wildlife Shooters: The EOS R6 Mark III takes everything that made the Mark II a hybrid favourite and pushes it further — a faster stacked sensor, smarter autofocus, and genuinely professional video specs. It's the most complete all-rounder in Canon's RF full-frame lineup, sitting just below the R5 II in resolution while matching it for speed.
Who should buy what
EOS R6 Mark III (2025)
is the right camera for you if…
- Working photographers who need a single body for both stills and serious video work
- Sports and wildlife shooters who need 40fps burst shooting with reliable subject tracking
- Hybrid content creators producing 4K and 6K footage alongside high-resolution stills
- Enthusiasts upgrading from the EOS R6 Mark II who want faster AF and more resolution
Full specificationsthe better value in each row is highlighted
| Specification | EOS 40DCanon · 2007 | EOS R6 Mark IIICanon · 2025 |
|---|---|---|
| Price | £26 usedBest | £2,699 |
| Sensor | 10.1MP APS-C CMOS | 32.5MP full-frame stacked CMOS |
| Resolution | 10.1MP | 32.5MPBest |
| Video | No video | 4K 60fps oversampled from 7K, 6K RAW internal |
| Autofocus | 9-point all cross-type phase-detect via viewfinder; contrast AF in live view | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking |
| Stabilisation | No IBIS (lens-based stabilisation only) | In-body 5-axis IS, up to 8.5 stops |
| Burst Rate | 6.5fps | 40fps (electronic shutter), 12fps (mechanical)Best |
| Battery Life | ~800 shots (CIPA)Best | ~580 shots (CIPA, LP-E6P) |
| Weight | 820g (with battery) | 609g (body only)Best |
| Dimensions | 145.5 × 107.8 × 73.5mm | 138.4 × 98.4 × 88.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Optical pentaprism, 95% coverage, 0.95x | EVF, 5.76M-dot, up to 120fps |
| Screen | 3.0" fixed LCD, 230k dots | 3.2-inch vari-angle touchscreen, 2.1M-dot |
| Mount | Canon EF / EF-S | Canon RF |
| Memory Cards | Single CompactFlash slot | Dual SD / SDHC / SDXC (UHS-II) |
| Connectivity | USB 2.0, AV out, N3 remote | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
EOS 40D
EOS R6 Mark III
Portrait
4.8/10
8.7/10
Street
4.5/10
6.7/10
Travel
4.6/10
6.5/10
Wedding & Events
4.7/10
8.6/10
Documentary
3.8/10
8.2/10
Sports & Action
5.4/10
8.5/10
Landscape
4.1/10
7.0/10
Wildlife
5.7/10
8.5/10
Casual
2.6/10
5.5/10
Food
3.4/10
8.2/10
Macro
3.2/10
8.7/10
Architecture
3.7/10
7.2/10
Astrophotography
5.1/10
6.7/10
Vlogging & Video
—
6.1/10
Filmmaking
—
7.6/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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