OM-1vs A7R IV
VS
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.
Landscape, Studio, Commercial — A7R IV (2019): 61MP in a mirrorless body — the resolution benchmark.
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
A7R IV (2019)
- Landscape photographers who print large
- Studio shooters needing maximum detail
Quick take: The a7r iv has the highest resolution at 61mp; the om-1 is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM-1 (2022) | A7R IV (2019) |
|---|---|---|
| Price | £1,299 | £2,199 |
| Sensor | Micro Four Thirds Live MOS stacked BSI | Full-frame BSI Exmor R CMOS 35mm |
| Resolution | 20.4MP | 61.0MP |
| Video | 4K 60fps 10-bit | 4K 30fps |
| Autofocus | 1053-point cross-type phase-detect, AI subject recognition | 567-point phase-detect, real-time tracking |
| Stabilisation | 5-axis IBIS, 7.0 stops (8 stops with sync IS) | 5-axis IBIS, 5.5 stops |
| Burst Rate | 10fps mechanical, 50fps electronic, 120fps Pro Capture | 10fps |
| Battery Life | 520 shots (CIPA) | 670 shots (CIPA) |
| Weight | 599g (body only) | 665g (body only) |
| Dimensions | 134.8 × 91.6 × 72.7mm | 128.9 × 96.4 × 77.5mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | EVF 0.83× 5.76M-dot | EVF 0.78× 5.76M-dot |
| Screen | 3.0" fully articulating touchscreen, 1.62M-dot | 3.0" tilting touchscreen, 1.44M-dot |
| Mount | Micro Four Thirds | Sony E-Mount |
| Memory Cards | 2× SD UHS-II / CFexpress Type B | 2× SD UHS-II / CFexpress Type A |
| Connectivity | Wi-Fi 5GHz, Bluetooth 5.0, USB-C 3.1, HDMI, 3.5mm mic/headphone | Wi-Fi 5GHz, Bluetooth 4.1, USB-C 3.2 |
More comparisons with OM-1
Camera family history