EOS R100vs A7R II
Canon
EOS R100 (2023)
Starting from £529 new
Best for First camera / beginner photography
View EOS R100
Sony
A7R II (2015)
Starting from £799 new
Best for Portrait, landscape & studio photography
View A7R 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.
Portrait, Landscape & Studio Photography — A7R II (2015): The A7R II transformed the A7R series — adding IBIS, 4K video, BSI sensor tech, and phase-detect AF in one generation. A landmark Sony camera.
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
A7R II (2015)
- Landscape and architecture photographers who want 42MP with IBIS for handheld shooting
- Portrait and studio photographers who need high resolution with improved AF reliability
- Sony FE system users who want a capable high-resolution body at a used price
- A7R I owners who need the stabilisation, 4K, and improved AF the original lacked
Quick take: The a7r ii has the highest resolution at 42mp; the eos r100 is the most affordable; only the a7r ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R100 (2023) | A7R II (2015) |
|---|---|---|
| Price | £529 | £799 |
| Sensor | 24.1MP APS-C CMOS | 42.4MP Full-Frame BSI CMOS Exmor R |
| Resolution | 24.1MP | 42.4MP |
| Video | 4K/30p (slight crop), 1080p/60p | 4K/30p (S35 or full-frame), 1080p/120p |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | 399 phase-detect + 25 contrast-detect AF points, face detection |
| Stabilisation | None (no IBIS) | IBIS — 5-axis, up to 4.5 stops (first A7R with IBIS) |
| Burst Rate | 6.5fps mechanical | 5fps |
| Battery Life | ~270 shots (CIPA) | ~290 shots (CIPA) |
| Weight | 356g (body, battery, card) | 625g (with battery and card) |
| Dimensions | 116.3 × 85.5 × 68.8mm | 126.9 × 95.7 × 60.3mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | EVF, OLED 2.36M dots, 0.78× magnification |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" tilting LCD, 1.23M dots (no touch) |
| Mount | Canon RF-mount | Sony FE (full-frame E-mount) |
| Memory Cards | Single SD UHS-II | Single SD UHS-I slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB, Wi-Fi, NFC |
Suitability by genre
| Genre | EOS R100 | A7R II |
|---|---|---|
| Portrait | ||
| Travel | ||
| Street | — | |
| Video | — | |
| Wildlife | — | |
| Landscape | — | |
| Architecture | — | |
| Vlogging & Video | — | |
| Sports & Action | — |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
More comparisons with EOS R100
Camera family history