EOS R100vs Canon EOS R5 Mark IIvs Sony A9 III
Canon
Canon EOS R5 Mark II (2024)
From £4299
Best for Hybrid shooters & professionals
View Canon EOS R5 Mark II
Which should you buy?
First Camera / Beginner Photography — EOS R100 (2023): The R100 does the basics well at the lowest possible price point. Its main value is as a gateway into the Canon RF ecosystem — the lenses you buy now will work on any Canon body you upgrade to later. Modest ambitions, reliably met.
Hybrid Shooters & Professionals — Canon EOS R5 Mark II (2024): The most complete hybrid camera Canon has ever made — 45MP stacked BSI, 30fps burst, 8K/60p RAW, and Canon's legendary Dual Pixel AF in one body.
Sports & Action Professionals — Sony A9 III (2023): A paradigm-shifting camera — the global shutter eliminates every rolling shutter limitation that has constrained action photography for years.
Who should buy what
EOS R100 (2023)
- First-time camera buyers stepping up from a smartphone
- Students and hobbyists wanting an affordable starting point
- Anyone who wants to start investing in Canon RF glass on a budget
- Casual photographers who don't need advanced video or speed
Canon EOS R5 Mark II (2024)
- You're a working photographer or filmmaker who needs high-resolution stills and professional video
- You shoot commercial, editorial, or high-end portrait work
- You want the absolute best Canon mirrorless has to offer
Sony A9 III (2023)
- You shoot professional sport, motorsport, or action and need zero rolling shutter distortion
- You need reliable high-speed flash sync for studio or on-location action work
- You want the absolute pinnacle of Sony's action and sports camera technology
Quick take: The canon eos r5 mark ii has the highest resolution at 45mp; the eos r100 is the most affordable; only the canon eos r5 mark ii, sony a9 iii are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R100 (2023) | Canon EOS R5 Mark II (2024) | Sony A9 III (2023) |
|---|---|---|---|
| Price | £529 | £4,299 | £5,999 |
| Sensor | 24.1MP APS-C CMOS | 45MP full-frame BSI stacked CMOS | 24.6MP full-frame Exmor RS CMOS (global shutter) |
| Resolution | 24.1MP | 45.0MP | 24.6MP |
| Video | 4K/30p (slight crop), 1080p/60p | 8K/60p RAW, 4K/120p, Cinema RAW Light | 4K/120p, 4K/60p, 1080p/240p |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | Dual Pixel CMOS AF II, AI subject tracking | AI subject recognition AF, 759-point phase-detect |
| Stabilisation | None (no IBIS) | 8-stop IBIS (coordinated with IS lenses) | 8-stop IBIS |
| Burst Rate | 6.5fps mechanical | 30fps electronic / 12fps mechanical | 120fps blackout-free electronic |
| Battery Life | ~270 shots (CIPA) | 570 shots (CIPA) | 530 shots (CIPA) |
| Weight | 356g (body, battery, card) | 746g body only | 703g body only |
| Dimensions | 116.3 × 85.5 × 68.8mm | 138.5 × 101.2 × 93.5mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | No | Yes | Yes |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | 0.64" OLED EVF, 5.76M dots, 120fps | 0.64" Quad-XGA OLED EVF, 9.44M dots |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.2" fully articulating touchscreen | 3.2" fully articulating touchscreen |
| Mount | Canon RF-mount | Canon RF | Sony FE (E-mount) |
| Memory Cards | Single SD UHS-II | CFexpress Type B + SD UHS-II | Dual CFexpress Type A / SD UHS-II |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth | USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3 |
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