OM-1vs Sony A9 III
VS
Sony
Sony A9 III (2023)
Starting from £5999 new
Best for Sports & action professionals
View Sony A9 III
GearScore™ Verdict — Which should you buy?
Wildlife, Sport, Outdoor — OM-1 (2022): OM System's statement camera — class-leading weather sealing and the best IBIS in the business.
Sports & Action Professionals — Sony A9 III (2023): A paradigm-shifting camera — the global shutter eliminates every rolling shutter limitation that has constrained action photography for years.
Who should buy what
OM-1 (2022)
- Wildlife and bird photographers who need fast burst and pro weather sealing
- Outdoor photographers who work in challenging conditions
Sony A9 III (2023)
- Professional sports photographers who need zero blackout and 120fps burst
- Wildlife photographers who demand the most advanced Sony AF available
- Photojournalists who need flash sync at any shutter speed
- A9 II owners upgrading to the world's first full-frame global shutter
Quick take: The sony a9 iii has the highest resolution at 25mp; the om-1 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-1 (2022) | Sony A9 III (2023) |
|---|---|---|
| Price | £1,299 | £5,999 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | 24.6MP full-frame Exmor RS CMOS (global shutter) |
| Resolution | 20.4MP | 24.6MP |
| Video | 4K 60fps 10-bit | 4K/120p, 4K/60p, 1080p/240p |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | AI subject recognition AF, 759-point phase-detect |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | 8-stop IBIS |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 120fps blackout-free electronic |
| Battery Life | 520 shots (CIPA) | 530 shots (CIPA) |
| Weight | 599g (body only) | 703g body only |
| Dimensions | 134.8 × 91.6 × 72.7mm | 136.1 × 96.9 × 82.9mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 5.76M-dot | 0.64" Quad-XGA OLED EVF, 9.44M dots |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | 3.2" fully articulating touchscreen |
| Mount | Micro Four Thirds | Sony FE (E-mount) |
| Memory Cards | 2× SD UHS-II / CFexpress Type B | Dual CFexpress Type A / SD UHS-II |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | USB-C 3.2, HDMI A, Wi-Fi 6, Bluetooth 5.3 |
Suitability by genre
| Genre | OM-1 | Sony A9 III |
|---|---|---|
| Sports & Action | — | |
| Wildlife | — | |
| Wedding & Events | — | |
| Portrait | — | |
| Vlogging & Video | — | |
| Travel | — |
More comparisons with OM-1
Camera family history