EOS RPvs OM System OM-1 Mark IIvs A6400
OM System
OM System OM-1 Mark II (2024)
From £1999
Best for Wildlife, birds & outdoor sports
View OM System OM-1 Mark II
Which should you buy?
Entry Full-Frame Stills Photography — EOS RP (2019): An affordable gateway into the RF system. The RP makes sense as a stepping stone camera — if you're committed to Canon RF glass, this is the cheapest full-frame body to buy those lenses for. Just manage expectations on video and battery life.
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.
Content Creation & Vlogging — A6400 (2019): The best value APS-C Sony you can buy — especially used. Real-time Eye AF at this price point was transformative when it launched and still makes it one of the most reliable autofocus systems in the lineup.
Who should buy what
EOS RP (2019)
- Canon users who want to start investing in RF glass affordably
- Stills photographers who shoot primarily in good light
- Anyone coming from a Canon DSLR wanting the RF system at low cost
- Travel photographers who prioritise compactness over video specs
OM System OM-1 Mark II (2024)
- You shoot wildlife, birds in flight, or fast-moving action where tracking accuracy is critical
- You need extreme weather sealing for shooting in rain, dust, mud, or freezing cold
- You're invested in the MFT ecosystem and want the absolute best body available
A6400 (2019)
- Vloggers and content creators who need a flip screen and reliable AF
- Photographers upgrading from a compact or smartphone
- Beginners who want room to grow into a full E-mount lens ecosystem
- Anyone prioritising autofocus performance at an accessible price
Quick take: The eos rp has the highest resolution at 26mp; the eos rp 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 | EOS RP (2019) | OM System OM-1 Mark II (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £799 | £1,999 | £899 |
| Sensor | 26.2MP Full-Frame CMOS | 20MP Micro Four Thirds Live MOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 26.2MP | 20.0MP | 24.2MP |
| Video | 4K/24p (with 1.7× crop), 1080p/60p | 4K/60p, 1080p/240p, 4K HLG | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF, 4779 manually selectable positions | AI subject detection AF (birds, animals, motorsport) | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 8.5-stop IBIS | None (no IBIS) |
| Burst Rate | 5fps mechanical | 120fps with AF tracking | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~250 shots (CIPA) — very limited | 520 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 485g (body, battery, card) | 599g body only | 403g (body, battery, card) |
| Dimensions | 132.5 × 85.0 × 70.0mm | 134.8 × 91.6 × 72.7mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | EVF, 2.36M dots, 0.70× magnification | 0.83" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" vari-angle touchscreen, 1.04M dots | 3.0" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF-mount | Micro Four Thirds | Sony E-mount |
| Memory Cards | Single SD UHS-II | Dual SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Wi-Fi, Bluetooth | USB-C, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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