EOS R8vs Leica SL3vs 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.
Professional & Luxury Hybrid Shooters — Leica SL3 (2024): Leica's most capable mirrorless — 60MP, 30fps burst, 8K ProRes, and 7.5-stop IBIS with L-mount's growing lens ecosystem.
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
Leica SL3 (2024)
- You want Leica image quality with the convenience of autofocus and interchangeable lenses
- You shoot portraits, commercial, or editorial and want the best Leica system camera
- You plan to use Leica M lenses via adapter alongside native SL glass
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 leica sl3 has the highest resolution at 60mp; the a6400 is the most affordable; only the leica sl3 is weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | EOS R8 (2023) | Leica SL3 (2024) | A6400 (2019) |
|---|---|---|---|
| Price | £1,099 | £6,499 | £899 |
| Sensor | 24.2MP Full-frame BSI CMOS | 60MP full-frame BSI CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 24.2MP | 60.0MP | 24.2MP |
| Video | 4K/60p oversampled 10-bit, FHD/180p | 8K/30p, 4K/60p, Apple ProRes | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking | Phase-detect AF with subject/face/eye detection | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 7.5-stop IBIS | None (no IBIS) |
| Burst Rate | 6fps mechanical, 40fps electronic | 30fps electronic | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~220 shots (CIPA) | 410 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 461g body only | 875g body only | 403g (body, battery, card) |
| Dimensions | 132.5 × 86.1 × 70.0mm | 146.0 × 104.0 × 42.0mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | No | Yes | No |
| Viewfinder | EVF, 2.36M dots, 0.59× | 0.78" OLED EVF, 5.76M dots | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" fully articulating touchscreen | 3.2" fixed touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon RF mount (full-frame) | Leica L-mount | Sony E-mount |
| Memory Cards | Single SD UHS-II slot | Dual SD UHS-II | Single SD UHS-I |
| Connectivity | USB-C, Bluetooth, Wi-Fi | USB-C 3.1, Wi-Fi, Bluetooth | Micro-USB, Wi-Fi, Bluetooth, NFC |
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