Canon EOS 90Dvs Olympus OM-D E-M5 IIIvs A6400

GearFrame · Updated March 2026

Canon Canon EOS 90D Canon Canon EOS 90D (2019) From £849 Best for Sports, wildlife & DSLR enthusiasts View Canon EOS 90D
VS
OM System Olympus OM-D E-M5 III OM System Olympus OM-D E-M5 III (2019) From £699 Best for Travel & lightweight outdoor photography View Olympus OM-D E-M5 III
VS
Sony A6400 Sony A6400 (2019) From £899 Best for Content creation & vlogging View A6400

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.

Travel & Lightweight Outdoor Photography — Olympus OM-D E-M5 III (2019): The lightest weather-sealed MFT camera — compact, travel-friendly, and capable with 7.5-stop IBIS in a body that fits in a jacket pocket.

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.

↓ Full specifications below

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

Olympus OM-D E-M5 III (2019)

  • You want a lightweight, sealed camera for travel and outdoor photography
  • You're new to Micro Four Thirds and want a capable mid-range body with excellent stabilisation
  • Note: consider the newer OM-5 for updated specs in a similar compact form factor

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 olympus om-d e-m5 iii is the most affordable; only the canon eos 90d, olympus om-d e-m5 iii are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS 90D (2019)Olympus OM-D E-M5 III (2019)A6400 (2019)
Price £849 £699 £899
Sensor 32.5MP APS-C CMOS (Dual Pixel AF) 20.4MP Micro Four Thirds Live MOS 24.2MP APS-C Exmor CMOS BSI
Resolution 32.5MP 20.4MP 24.2MP
Video 4K/30p (1.6× crop), FHD/120p 4K/30p, 1080p/120p 4K/30p (6K oversampled, no crop), 1080p/120p slow-motion
Autofocus Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) Hybrid phase/contrast AF with face/eye detection Phase-detect, 425 points, real-time Eye AF & animal AF
Stabilisation None (no IBIS) 7.5-stop 5-axis IBIS None (no IBIS)
Burst Rate 10fps mechanical 30fps electronic / 10fps mechanical 11fps mechanical, 8fps with AF tracking
Battery Life ~1300 shots (CIPA with OVF) 390 shots (CIPA) ~410 shots (CIPA)
Weight 701g body only 414g body only 403g (body, battery, card)
Dimensions 140.7 × 104.8 × 76.8mm 125.3 × 85.2 × 49.7mm 120.0 × 66.9 × 59.7mm
Weather Sealed Yes Yes No
Viewfinder Optical pentaprism, 100% coverage, 0.95× magnification 0.35" OLED EVF, 2.36M dots EVF, 2.36M dots, 0.70× magnification
Screen 3.0" vari-angle touchscreen 3.0" fully articulating touchscreen 3.0" tilting touchscreen, 180° flip for selfie/vlog, 921k dots
Mount Canon EF / EF-S Micro Four Thirds Sony E-mount
Memory Cards Dual SD UHS-II slots Single SD UHS-I Single SD UHS-I
Connectivity USB 2.0, Bluetooth, Wi-Fi Micro USB, Wi-Fi, Bluetooth Micro-USB, Wi-Fi, Bluetooth, NFC
⚡ Compare specs side by side Canon EOS 90D prices → Olympus OM-D E-M5 III prices → A6400 prices →

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