OM System OM-1 Mark IIvs OM-3
OM System
OM System OM-1 Mark II (2024)
From £1999
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
Which should you buy?
Wildlife, Birds & Outdoor Sports — OM System OM-1 Mark II (2024): OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.
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
OM System OM-1 Mark II (2024)
- Wildlife and bird photographers who need the best subject tracking in MFT
- Sports photographers who want weather sealing and 50fps burst
- OM-1 owners looking for a meaningful autofocus upgrade
- Professionals who need pro-grade weather sealing in the lightest possible system
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 om-3 has the highest resolution at 20mp; the om-3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System OM-1 Mark II (2024) | OM-3 (2024) |
|---|---|---|
| Price | £1,999 | £999 |
| Sensor | 20MP Micro Four Thirds Live MOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 20.0MP | 20.4MP |
| Video | 4K/60p, 1080p/240p, 4K HLG | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | AI subject detection AF (birds, animals, motorsport) | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | 8.5-stop IBIS | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 120fps with AF tracking | 10fps mechanical, 30fps electronic with AF |
| Battery Life | 520 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 599g body only | 414g (with battery) |
| Dimensions | 134.8 × 91.6 × 72.7mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.83" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" fully articulating touchscreen |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Dual SD UHS-II | Single SD UHS-II slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM System OM-1 Mark II | OM-3 |
|---|---|---|
| Wildlife | ||
| Sports & Action | — | |
| Landscape | ||
| Travel | ||
| Portrait | ||
| Vlogging & Video | ||
| Street | — |
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