GH7vs OM-3
OM System
OM-3 (2024)
Starting from £999 new
Best for Travel, outdoor & adventure photography
View OM-3
GearScore™ Verdict — Which should you buy?
Video & Documentary — GH7 (2024): The GH7 is the GH series at its peak — phase-detect AF finally arrived, alongside 5.7K/60p open-gate, C4K/60p 10-bit 4:2:2, and ProRes RAW. A landmark video camera in the Micro Four Thirds format, and the most complete GH Panasonic has ever built.
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
GH7 (2024)
- Video professionals who want the best MFT camera ever made
- Documentary and event videographers who need reliable AF and great stabilisation
- Hybrid photographers who want high burst rates and serious video in one body
- GH5/GH6 owners ready for a major upgrade
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 gh7 has the highest resolution at 25mp; the om-3 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | GH7 (2024) | OM-3 (2024) |
|---|---|---|
| Price | £1,700 | £999 |
| Sensor | 25.2MP Live MOS Micro Four Thirds | 20.4MP Live MOS Micro Four Thirds |
| Resolution | 25.2MP | 20.4MP |
| Video | 5.7K/60p (open gate), C4K/60p 10-bit 4:2:2, ProRes RAW via HDMI | 4K/60p (10-bit), C4K/30p, 1080p/120p |
| Autofocus | Phase-detect + contrast-detect AF with subject recognition | Phase-detect AF — subject recognition (human, animal, bird, vehicle) |
| Stabilisation | 5-axis Dual I.S. 2 (body + lens) | IBIS — up to 6.5 stops (7.5 stops with Sync IS lenses) |
| Burst Rate | 75fps (electronic), 14fps (mechanical) | 10fps mechanical, 30fps electronic with AF |
| Battery Life | ~370 shots (CIPA) | ~400 shots (CIPA) |
| Weight | 535g (body only) | 414g (with battery) |
| Dimensions | 138.4 × 102.3 × 91.6mm | 122.3 × 84.6 × 49.4mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | Electronic, 3.68M dots, 0.76× | EVF, 2.36M dots, 0.74× magnification |
| Screen | 3.0" fully articulating touchscreen, 1.84M dots | 3.0" fully articulating touchscreen |
| Mount | Micro Four Thirds | Micro Four Thirds |
| Memory Cards | Dual slot: CFexpress Type B + SD UHS-II | Single SD UHS-II slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth, HDMI | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | GH7 | OM-3 |
|---|---|---|
| Vlogging & Video | ||
| Wedding & Events | — | |
| Wildlife | ||
| Sports & Action | — | |
| Travel | ||
| Landscape | ||
| Portrait | ||
| Street |
GearScore™ suitability scores are based on aggregated purchaser reviews weighted by photography genre. See how scores are calculated →
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Camera family history