OM System OM-1 Mark IIvs Sigma fp
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
Sigma
Sigma fp (2019)
Starting from £1499 new
Best for Creative filmmakers & experimental photographers
View Sigma fp
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.
Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.
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
Sigma fp (2019)
- Filmmakers who want the world's smallest full-frame camera as a B or C camera
- Experimental photographers who want to build a unique, modular setup
- L-mount photographers who want an ultra-compact full-frame body
- Anyone who wants a conversation-starting camera that delivers serious results
Quick take: The sigma fp has the highest resolution at 25mp; the sigma fp 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) | Sigma fp (2019) |
|---|---|---|
| Price | £1,999 | £1,499 |
| Sensor | 20MP Micro Four Thirds Live MOS | 24.6MP full-frame Bayer CMOS |
| Resolution | 20.0MP | 24.6MP |
| Video | 4K/60p, 1080p/240p, 4K HLG | 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p |
| Autofocus | AI subject detection AF (birds, animals, motorsport) | Contrast-detect AF with face/eye detection |
| Stabilisation | 8.5-stop IBIS | None (lens-based only) |
| Burst Rate | 120fps with AF tracking | 18fps electronic |
| Battery Life | 520 shots (CIPA) | 200 shots (CIPA) |
| Weight | 599g body only | 422g body only |
| Dimensions | 134.8 × 91.6 × 72.7mm | 112.6 × 69.9 × 45.3mm |
| Weather Sealed | Yes | No |
| Viewfinder | 0.83" OLED EVF, 5.76M dots, 120fps | None |
| Screen | 3.0" fully articulating touchscreen | 3.15" fixed touchscreen |
| Mount | Micro Four Thirds | Leica L-mount |
| Memory Cards | Dual SD UHS-II | Single SD UHS-II + CFexpress Type B (via adapter) |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C 3.1, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM System OM-1 Mark II | Sigma fp |
|---|---|---|
| Wildlife | — | |
| Sports & Action | ||
| Landscape | ||
| Travel | ||
| Portrait | ||
| Vlogging & Video | ||
| 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