EOS R100vs OM-3
Canon
EOS R100 (2023)
Starting from £529 new
Best for First camera / beginner photography
View EOS R100
OM System
OM-3 (2024)
Starting from £999 new
Best for Travel, outdoor & adventure photography
View OM-3
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.
Travel, Outdoor & Adventure Photography — OM-3 (2024): The ideal mid-range OM System camera — weather sealed, class-leading IBIS, and superb computational features in a compact 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
OM-3 (2024)
- Outdoor and adventure photographers who need weather sealing and compact size
- Wildlife and bird photographers wanting improved AF over the OM-5
- Travel shooters who want a rugged, lightweight MFT system
- OM-5 or E-M5 III owners wanting better autofocus without going to the OM-1
Quick take: The eos r100 has the highest resolution at 24mp; the eos r100 is the most affordable; only the om-3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R100 (2023) | OM-3 (2024) |
|---|---|---|
| Price | £529 | £999 |
| Sensor | 24.1MP APS-C CMOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 24.1MP | 20.4MP |
| Video | 4K/30p (slight crop), 1080p/60p | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | Dual Pixel CMOS AF, face detection, subject tracking | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | None (no IBIS) | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 6.5fps mechanical | 10fps mechanical, 30fps electronic with AF |
| Battery Life | ~270 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 356g (body, battery, card) | 414g (with battery) |
| Dimensions | 116.3 × 85.5 × 68.8mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | No | Yes |
| Viewfinder | EVF, 2.36M dots, 0.59× magnification | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.0" fixed touchscreen, 1.04M dots | 3.0" fully articulating touchscreen |
| Mount | Canon RF-mount | Micro Four Thirds |
| Memory Cards | Single SD UHS-II | Single SD UHS-II slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | EOS R100 | OM-3 |
|---|---|---|
| Portrait | ||
| Travel | ||
| Street | ||
| Video | — | |
| Wildlife | ||
| Landscape | — | |
| Vlogging & Video | — |
More comparisons with EOS R100
Camera family history