OM System
OM-1 Mark II 2024
Best for Wildlife, birds & outdoor sports
£2049
new today at Clifton Cameras
Decision tools · Compare
OM-1 Mark II vs OM-3
Quick take: The OM-3 has the highest resolution at 20MP; the OM-3 is the most affordable.
16 specs side by side·15 genres scored·UK prices from Wex Photo Video and Clifton Cameras
How to read this page. Highlighted cells win that row on the spec alone. Genre scores are the engine's base scores (enthusiast, photo and video); Camera Match re-weights them for your level and priorities. Price buttons are affiliate links; the price you pay is the same.
OM System
OM-3 2025
Best for Travel, outdoor & adventure photography
£1649
new today at Clifton Cameras
Price buttons are affiliate links — GearFrame may earn a commission at no extra cost to you. It never affects a score. Learn more
Verdictwhich should you buy?
OM-1 Mark II — Wildlife, Birds & Outdoor Sports: OM System's most capable camera — 120fps AF burst, AI subject detection, and IP53 weather sealing make it the best-value pro wildlife camera.
OM-3 — Travel, Outdoor & Adventure Photography: 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-1 Mark II (2024)
is the right camera for you if…
- 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 (2025)
is the right camera for you if…
- 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
Full specificationsthe better value in each row is highlighted
| Specification | OM-1 Mark IIOM System · 2024 | OM-3OM System · 2025 |
|---|---|---|
| Price | £2,049 | £1,649Best |
| Sensor | 20MP Micro Four Thirds Live MOS | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 20.0MP | 20.4MPBest |
| 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 trackingBest | 10fps mechanical, 30fps electronic with AF |
| Battery Life | 520 shots (CIPA)Best | ~400 shots (CIPA) |
| Weight | 599g (body only) | 414g (with battery and card)Best |
| 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 |
Wins the row — price, resolution, burst, battery, weight and sealing are compared; text specs aren't ranked.
How they score by genreengine base scores out of 10
Genre
OM-1 Mark II
OM-3
Portrait
7.6/10
7.3/10
Street
6.6/10
6.9/10
Travel
6.6/10
6.9/10
Wedding & Events
7.9/10
6.8/10
Vlogging & Video
6.4/10
6.7/10
Filmmaking
6.8/10
6.7/10
Documentary
7.9/10
7.9/10
Sports & Action
9.3/10
8.9/10
Landscape
6.1/10
6.2/10
Wildlife
9.1/10
9.0/10
Casual
5.5/10
5.8/10
Food
7.4/10
7.3/10
Macro
8.4/10
8.2/10
Architecture
6.3/10
6.3/10
Astrophotography
6.0/10
6.1/10
Scores come from the same engine as Camera Match: verified specifications weighted by what each genre needs, with documented adjustments. The product page and this table show the enthusiast base score. See how scores are calculated →
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