EOS R8vs EOS RPvs A6400
Which should you buy?
Full-Frame Entry — EOS R8 (2023): Canon's most affordable full-frame mirrorless — 4K/60p 10-bit and class-leading Dual Pixel AF at an accessible entry price.
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.
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 R8 (2023)
- You want full-frame image quality on a tight budget
- You shoot mainly in good light and can live without built-in stabilisation
- You primarily shoot stills with occasional video
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
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. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R8 (2023) | EOS RP (2019) | A6400 (2019) |
|---|---|---|---|
| Price | £1,099 | £799 | £899 |
| Sensor | 24.2MP Full-frame BSI CMOS | 26.2MP Full-Frame CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 26.2MP | 24.2MP |
| Video | 4K/60p oversampled 10-bit, FHD/180p | 4K/24p (with 1.7× crop), 1080p/60p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking | Dual Pixel CMOS AF, 4779 manually selectable positions | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | None (no IBIS) | None (no IBIS) |
| Burst Rate | 6fps mechanical, 40fps electronic | 5fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~220 shots (CIPA) | ~250 shots (CIPA) — very limited | ~410 shots (CIPA) |
| Weight | 461g body only | 485g (body, battery, card) | 403g (body, battery, card) |
| Dimensions | 132.5 × 86.1 × 70.0mm | 132.5 × 85.0 × 70.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | No | No |
| Viewfinder | EVF, 2.36M dots, 0.59× | EVF, 2.36M dots, 0.70× magnification | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.0" vari-angle touchscreen, 1.04M dots | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF mount (full-frame) | Canon RF-mount | Sony E-mount |
| Memory Cards | Single SD UHS-II slot | Single SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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