Canon EOS 90Dvs Canon EOS R3vs A6400
Canon
Canon EOS 90D (2019)
From £849
Best for Sports, wildlife & DSLR enthusiasts
View Canon EOS 90D
Canon
Canon EOS R3 (2021)
From £5999
Best for Sports & photojournalism professionals
View Canon EOS R3
Which should you buy?
Sports, Wildlife & Dslr Enthusiasts — Canon EOS 90D (2019): The best APS-C DSLR Canon ever made — 32MP, 10fps, weather sealing, and an optical viewfinder experience no mirrorless can replicate.
Sports & Photojournalism Professionals — Canon EOS R3 (2021): The pinnacle of Canon's mirrorless lineup for speed — Eye Control AF and 30fps burst in the most rugged body Canon has ever produced.
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
Canon EOS 90D (2019)
- You're invested in Canon EF DSLR lenses and don't want to switch systems
- You shoot wildlife or sports and prefer an optical viewfinder
- You want a mid-range DSLR upgrade without going mirrorless
Canon EOS R3 (2021)
- You shoot sport, motorsport, wildlife, or news at a professional level
- You need Canon's most reliable and fastest autofocus available
- You need extreme weather sealing for demanding shooting conditions
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 canon eos 90d has the highest resolution at 32mp; the canon eos 90d is the most affordable; only the canon eos 90d, canon eos r3 are weather sealed. Scroll down for the full spec breakdown.
Full specifications
| Specification | Canon EOS 90D (2019) | Canon EOS R3 (2021) | A6400 (2019) |
|---|---|---|---|
| Price | £849 | £5,999 | £899 |
| Sensor | 32.5MP APS-C CMOS (Dual Pixel AF) | 24.1MP full-frame BSI stacked CMOS | 24.2MP APS-C Exmor CMOS BSI |
| Resolution | 32.5MP | 24.1MP | 24.2MP |
| Video | 4K/30p (1.6× crop), FHD/120p | 6K RAW, 4K/120p, 1080p/180p | 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion |
| Autofocus | Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) | Dual Pixel CMOS AF II with Eye Control AF | Phase-detect, 425 points, real-time Eye AF & animal AF |
| Stabilisation | None (no IBIS) | 8-stop IBIS | None (no IBIS) |
| Burst Rate | 10fps mechanical | 30fps electronic / 12fps mechanical | 11fps mechanical, 8fps with AF tracking |
| Battery Life | ~1300 shots (CIPA with OVF) | 620 shots (CIPA) | ~410 shots (CIPA) |
| Weight | 701g body only | 1015g body only | 403g (body, battery, card) |
| Dimensions | 140.7 × 104.8 × 76.8mm | 150.0 × 142.6 × 87.2mm | 120.0 × 66.9 × 59.7mm |
| Weather Sealed | Yes | Yes | No |
| Viewfinder | Optical pentaprism, 100% coverage, 0.95× magnification | 0.76" OLED EVF, 5.76M dots, 120fps | EVF, 2.36M dots, 0.70× magnification |
| Screen | 3.0" vari-angle touchscreen | 3.2" fully articulating touchscreen | 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots |
| Mount | Canon EF / EF-S | Canon RF | Sony E-mount |
| Memory Cards | Dual SD UHS-II slots | Dual CFexpress Type B | Single SD UHS-I |
| Connectivity | USB 2.0, Bluetooth, Wi-Fi | USB-C 3.2, HDMI full-size, Wi-Fi 6, Bluetooth, LAN | Micro-USB, Wi-Fi, Bluetooth, NFC |
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