EOS R100vs A7R IV
Canon
EOS R100 (2023)
Starting from £529 new
Best for First camera / beginner photography
View EOS R100
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.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
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 IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the eos r100 is the most affordable; only the a7r iv is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R100 (2023) | A7R IV (2019) |
|---|---|---|
| Price | £529 | £2,199 |
| Sensor | 24.1MP APS-C CMOS | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 24.1MP | 61.0MP |
| Video | 4K/30p (slight crop), 1080p/60p | 4K 30fps |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | 567-point phase-detect, real-time tracking |
| Stabilisation | None (no IBIS) | 5-axis IBIS, 5.5 stops |
| Burst Rate | 6.5fps mechanical | 10fps |
| Battery Life | ~270 shots (CIPA) | 670 shots (CIPA) |
| Weight | 356g (body, battery, card) | 665g (body only) |
| Dimensions | 116.3 × 85.5 × 68.8mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | EVF 0.78× 5.76M-dot |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Canon RF-mount | Sony E-Mount |
| Memory Cards | Single SD UHS-II | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
Suitability by genre
| Genre | EOS R100 | A7R IV |
|---|---|---|
| Portrait | — | |
| Travel | — | |
| Street | — | |
| Video | — | |
| Wildlife | — |
More comparisons with EOS R100
Camera family history