Canon EOS 90Dvs Z6 IIvs A7S III

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
Nikon Z6 II Nikon Z6 II (2020) From £1699 Best for All-round full-frame photography View Z6 II
VS
Sony A7S III Sony A7S III (2020) From £2999 Best for Professional video & low-light filmmaking View A7S III

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.

All-Round Full-Frame Photography — Z6 II (2020): The Z6 II is the Nikon most photographers should buy. It's balanced across every discipline — stills, video, autofocus, weather sealing — without overpaying for megapixels you don't need. The Z-mount glass is superb.

Professional Video & Low-Light Filmmaking — A7S III (2020): If video is your primary discipline, the A7S III is the camera. 4K/120p at 10-bit in a weather-sealed body with a 9.44M dot EVF is an extraordinary package. The 12MP sensor isn't limiting for video — and it's usable at ISO 409,600 in a pinch.

↓ 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

Z6 II (2020)

  • Nikon DSLR users ready to move to mirrorless
  • Photographers who need a reliable all-rounder without specialising
  • Video creators wanting 4K/60p in a weather-sealed body
  • Enthusiasts who shoot everything from portraits to travel

A7S III (2020)

  • Filmmakers and videographers who need 4K/120p at 10-bit
  • Event videographers who shoot in dark venues regularly
  • Documentary filmmakers who need reliable AF and weather sealing
  • Hybrid shooters where video is primary and stills are secondary

Quick take: The canon eos 90d has the highest resolution at 32mp; the canon eos 90d is the most affordable. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS 90D (2019)Z6 II (2020)A7S III (2020)
Price £849 £1,699 £2,999
Sensor 32.5MP APS-C CMOS (Dual Pixel AF) 24.5MP Full-Frame BSI CMOS 12.1MP Full-Frame BSI CMOS (12-bit, back-illuminated)
Resolution 32.5MP 24.5MP 12.1MP
Video 4K/30p (1.6× crop), FHD/120p 4K/60p, 4K/30p (oversampled), 1080p/120p slow-motion 4K/120p 10-bit, 4K/60p 10-bit S-Cinetone/S-Log3, 1080p/240p
Autofocus Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) Phase-detect, 273 points, Eye AF, subject tracking Phase-detect, 759 points, real-time Eye AF (human & animal), subject recognition
Stabilisation None (no IBIS) 5-axis IBIS, 5 stops (up to 6 stops with VR lenses) 5.5-stop IBIS
Burst Rate 10fps mechanical 14fps mechanical, 14fps electronic (12-bit RAW) 10fps mechanical
Battery Life ~1300 shots (CIPA with OVF) ~410 shots (CIPA) ~600 shots (CIPA) / ~70min continuous 4K recording
Weight 701g body only 705g (body, battery, card) 699g (body, battery, card)
Dimensions 140.7 × 104.8 × 76.8mm 134.0 × 100.5 × 69.5mm 128.9 × 96.9 × 80.8mm
Weather Sealed Yes Yes Yes
Viewfinder Optical pentaprism, 100% coverage, 0.95× magnification EVF, 3.69M dots, 0.80× magnification OLED EVF, 9.44M dots, 0.90× magnification — best EVF Sony has made
Screen 3.0" vari-angle touchscreen 3.2" tilting touchscreen, 2.1M dots 3.0" vari-angle touchscreen, 1.44M dots
Mount Canon EF / EF-S Nikon Z-mount Sony E-mount
Memory Cards Dual SD UHS-II slots Dual card: 1× CFexpress Type B / XQD + 1× SD UHS-II Dual CFexpress Type A / SD UHS-II (both slots)
Connectivity USB 2.0, Bluetooth, Wi-Fi USB-C (USB 3.2 Gen 2), Wi-Fi, Bluetooth USB-C (USB 3.2 Gen 2), full-size HDMI, Wi-Fi 6, Bluetooth
⚡ Compare specs side by side Canon EOS 90D prices → Z6 II prices → A7S III prices →

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