EOS R6 Mark IIIvs A5100
Canon
EOS R6 Mark III (2025)
Starting from £2799 new
Best for Hybrid photo & video professionals, sports and wildlife shooters
View EOS R6 Mark III
GearScore™ Verdict — Which should you buy?
Hybrid Photo & Video Professionals, Sports And Wildlife Shooters — EOS R6 Mark III (2025): 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.
Casual & Travel — A5100 (2014): The A5100 is one of the smallest APS-C mirrorless cameras ever made. Its 24MP sensor, phase-detect AF, and selfie-friendly flip screen pack remarkable capability into a shirt-pocket-sized body. No EVF or hot shoe limits it for serious use, but as a compact travel camera or beginner's first mirrorless, it punches well above its price on the used market.
Who should buy what
EOS R6 Mark III (2025)
- 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
A5100 (2014)
- Beginners stepping up from a smartphone
- Compact travel photographers
- Casual vloggers who want APS-C quality
Quick take: The eos r6 mark iii has the highest resolution at 32mp; the a5100 is the most affordable; only the eos r6 mark iii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R6 Mark III (2025) | A5100 (2014) |
|---|---|---|
| Price | £2,799 | £200 |
| Sensor | 32.5MP full-frame stacked CMOS | 24.3MP APS-C Exmor CMOS |
| Resolution | 32.5MP | 24.3MP |
| Video | 4K 60fps oversampled from 7K, 6K RAW internal | 1080p/60p |
| Autofocus | Dual Pixel CMOS AF II — deep-learning subject detection for people, animals and vehicles, up to 40fps tracking | Hybrid phase-detect / contrast-detect AF, face detection |
| Stabilisation | In-body 5-axis IS, up to 8.5 stops | None |
| Burst Rate | 40fps (electronic shutter), 12fps (mechanical) | 6fps |
| Battery Life | ~580 shots (CIPA, LP-E6P) | ~400 shots (CIPA) |
| Weight | 670g (body with battery and card) | 224g (body only) |
| Dimensions | 138.4 × 98.4 × 88.4mm | 109.6 × 62.8 × 35.7mm |
| Weather Sealed | Yes | No |
| Viewfinder | EVF, 5.76M-dot, up to 120fps | None |
| Screen | 3.2-inch vari-angle touchscreen, 2.1M-dot | 3.0" flip-up touchscreen, 921k dots |
| Mount | Canon RF | Sony E-mount |
| Memory Cards | Dual SD / SDHC / SDXC (UHS-II) | Single SD / MemoryStick PRO Duo slot |
| Connectivity | USB-C, Wi-Fi 6, Bluetooth 5.0, 2.5GbE | Micro USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R6 Mark III | A5100 |
|---|---|---|
| Sports & Action | ||
| Wildlife | — | |
| Vlogging & Video | ||
| Portrait | ||
| Landscape | ||
| Travel | ||
| Street | ||
| Casual |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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