OM System OM-1 Mark IIvs A7 V
OM System
OM System OM-1 Mark II (2024)
Starting from £1999 new
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
VS
GearScore™ Verdict — 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.
Portrait, Wedding, Travel, Video — A7 V (2024): The definitive full-frame mirrorless. Hard to argue for anything else at this price.
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
A7 V (2024)
- A7 III or A7 IV owners ready for a meaningful upgrade
- Photographers who want one camera to cover everything
Quick take: The a7 v has the highest resolution at 33mp; the om system om-1 mark ii is the most affordable. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System OM-1 Mark II (2024) | A7 V (2024) |
|---|---|---|
| Price | £1,999 | £2,799 |
| Sensor | 20MP Micro Four Thirds Live MOS | Full-frame BSI-CMOS 35mm, partially stacked |
| Resolution | 20.0MP | 33.0MP |
| Video | 4K/60p, 1080p/240p, 4K HLG | 4K 60fps 10-bit |
| Autofocus | AI subject detection AF (birds, animals, motorsport) | 759-point phase-detect, AI subject recognition (human, animal, bird, insect, vehicle) |
| Stabilisation | 8.5-stop IBIS | 5-axis IBIS, 8.0 stops |
| Burst Rate | 120fps with AF tracking | 10fps mechanical, 20fps electronic |
| Battery Life | 520 shots (CIPA) | 760 shots (CIPA) |
| Weight | 599g body only | 514g (body only) |
| Dimensions | 134.8 × 91.6 × 72.7mm | 131.3 × 96.4 × 70.0mm |
| Weather Sealed | Yes | Yes |
| Viewfinder | 0.83" OLED EVF, 5.76M dots, 120fps | EVF 0.90× 9.44M-dot |
| Screen | 3.0" fully articulating touchscreen | 3.2" fully articulating touchscreen, 1.44M-dot |
| Mount | Micro Four Thirds | Sony E-Mount |
| Memory Cards | Dual SD UHS-II | 2× SD UHS-II / CFexpress Type A |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Wi-Fi 6GHz, Bluetooth 5.3, USB-C 3.2 Gen 2 |
Suitability by genre
| Genre | OM System OM-1 Mark II | A7 V |
|---|---|---|
| Wildlife | — | |
| Sports & Action | — | |
| Landscape | — | |
| Travel | — | |
| Portrait | — | |
| Vlogging & Video | — |
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