EOS R100vs A1 II
Canon
EOS R100 (2023)
Starting from £529 new
Best for First camera / beginner photography
View EOS R100
Sony
A1 II (2025)
Starting from £6500 new
Best for Professional sports, wildlife & high-resolution studio work
View A1 II
GearScore™ Verdict — 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.
Professional Sports, Wildlife & High-Resolution Studio Work — A1 II (2025): The most complete camera ever made — 50MP, 30fps, 8K, and the world's best EVF in a single flagship body.
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
A1 II (2025)
- Professional sports and wildlife photographers who need 30fps, 50MP, and the best AF available
- Commercial and advertising photographers who demand 50MP resolution alongside pro video specs
- Photojournalists who need a single body capable of handling every assignment
- Sony system shooters ready to invest in the absolute best
Quick take: The a1 ii has the highest resolution at 50mp; the eos r100 is the most affordable; only the a1 ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R100 (2023) | A1 II (2025) |
|---|---|---|
| Price | £529 | £6,500 |
| Sensor | 24.1MP APS-C CMOS | 50.1MP full-frame stacked BSI CMOS |
| Resolution | 24.1MP | 50.1MP |
| Video | 4K/30p (slight crop), 1080p/60p | 8K/30p, 4K/120p 10-bit, 4K/240p super slow-motion |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | AI subject recognition — human, animal, bird, insect, vehicle, aircraft, train |
| Stabilisation | None (no IBIS) | 8.5-stop IBIS (with in-lens OSS) |
| Burst Rate | 6.5fps mechanical | 30fps electronic (with full AF/AE), 10fps mechanical |
| Battery Life | ~270 shots (CIPA) | ~530 shots (CIPA) |
| Weight | 356g (body, battery, card) | 743g body only |
| Dimensions | 116.3 × 85.5 × 68.8mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | EVF 0.9× 9.44M-dot — the highest resolution EVF available |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.2" fully articulating touchscreen, 2.1M dots |
| Mount | Canon RF-mount | Sony E-mount (full-frame) |
| Memory Cards | Single SD UHS-II | Dual CFexpress Type A / SD UHS-II slots |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C 3.2 Gen 2, Wi-Fi 6GHz, Bluetooth 5.3, HDMI full-size |
Suitability by genre
| Genre | EOS R100 | A1 II |
|---|---|---|
| Portrait | ||
| Travel | ||
| Street | — | |
| Video | — | |
| Wildlife | ||
| Sports | — | |
| Landscape | — | |
| Vlogging & Video | — |
More comparisons with EOS R100
Camera family history