OM System OM-1 Mark IIvs GR IIIx HDF
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
Ricoh
GR IIIx HDF (2024)
Starting from £999 new
Best for Street & documentary photography with a distinctive aesthetic
View GR IIIx HDF
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.
Street & Documentary Photography With A Distinctive Aesthetic — GR IIIx HDF (2024): The GR IIIx with a built-in dream filter — for photographers who want the GR's legendary APS-C quality with an added layer of analogue magic.
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
GR IIIx HDF (2024)
- GR IIIx fans who want the HDF bloom effect without using post-processing
- Street photographers who want a distinctive, instantly recognisable aesthetic
- Film photography enthusiasts who want to replicate analogue optical character digitally
- GR III owners ready to upgrade to the 40mm equivalent perspective
Quick take: The gr iiix hdf has the highest resolution at 24mp; the gr iiix hdf 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) | GR IIIx HDF (2024) |
|---|---|---|
| Price | £1,999 | £999 |
| Sensor | 20MP Micro Four Thirds Live MOS | 24.2MP APS-C CMOS |
| Resolution | 20.0MP | 24.2MP |
| Video | 4K/60p, 1080p/240p, 4K HLG | 1920 × 1080 / 60fps |
| Autofocus | AI subject detection AF (birds, animals, motorsport) | Phase/contrast hybrid CDAF with Snap Focus |
| Stabilisation | 8.5-stop IBIS | 3-axis Shake Reduction (SR) — 4 stops |
| Burst Rate | 120fps with AF tracking | 4fps continuous |
| Battery Life | 520 shots (CIPA) | ~200 shots (CIPA) |
| Weight | 599g body only | 262g body only |
| Dimensions | 134.8 × 91.6 × 72.7mm | 122.5 × 69.5 × 35.2mm |
| Weather Sealed | Yes | No |
| Viewfinder | 0.83" OLED EVF, 5.76M dots, 120fps | None — rear LCD only |
| Screen | 3.0" fully articulating touchscreen | 3.0" fixed LCD touchscreen, 1.037M dots |
| Mount | Micro Four Thirds | Fixed GR Lens 26.1mm f/2.8 (40mm equivalent) |
| Memory Cards | Dual SD UHS-II | Single SD/SDHC/SDXC slot |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth |
Suitability by genre
| Genre | OM System OM-1 Mark II | GR IIIx HDF |
|---|---|---|
| Wildlife | ||
| Sports & Action | — | |
| Landscape | ||
| Travel | ||
| Portrait | ||
| Vlogging & Video | — | |
| Street | — | |
| Sports | — |
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