OM System OM-1 Mark IIvs A6100
OM System
OM System OM-1 Mark II (2024)
From £1999
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
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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.
Beginner, Family, Travel — A6100 (2019): Best autofocus in its class for the 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
A6100 (2019)
- First-time mirrorless buyers who want solid AF
- Families stepping up from a smartphone
Quick take: The a6100 has the highest resolution at 24mp; the a6100 is the most affordable; only the om system om-1 mark ii is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | OM System OM-1 Mark II (2024) | A6100 (2019) |
|---|---|---|
| Price | £1,999 | £549 |
| Sensor | 20MP Micro Four Thirds Live MOS | APS-C Exmor CMOS |
| Resolution | 20.0MP | 24.2MP |
| Video | 4K/60p, 1080p/240p, 4K HLG | 4K 30fps |
| Autofocus | AI subject detection AF (birds, animals, motorsport) | 425-point phase-detect, real-time tracking |
| Stabilisation | 8.5-stop IBIS | None |
| Burst Rate | 120fps with AF tracking | 11fps |
| Battery Life | 520 shots (CIPA) | 420 shots (CIPA) |
| Weight | 599g body only | 396g (body only) |
| Dimensions | 134.8 × 91.6 × 72.7mm | 119.9 × 66.9 × 59.4mm |
| Weather Sealed | Yes | No |
| Viewfinder | 0.83" OLED EVF, 5.76M dots, 120fps | EVF 0.39" 1.44M-dot |
| Screen | 3.0" fully articulating touchscreen | 3.0" tilting touchscreen, 921k-dot |
| Mount | Micro Four Thirds | Sony E-Mount |
| Memory Cards | Dual SD UHS-II | SD UHS-I / Memory Stick |
| Connectivity | USB-C, Wi-Fi, Bluetooth | Wi-Fi, Bluetooth 4.1, Micro USB, Micro HDMI |
Suitability by genre
| Genre | OM System OM-1 Mark II | A6100 |
|---|---|---|
| Wildlife | — | |
| Sports & Action | — | |
| Landscape | — | |
| Travel | — | |
| Portrait | — | |
| Vlogging & Video | — |
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Camera family history