Canon EOS 90Dvs EOS R8vs A7 IV

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
Canon EOS R8 Canon EOS R8 (2023) From £1099 Best for Full-frame entry View EOS R8
VS
Sony A7 IV Sony A7 IV (2021) From £2299 Best for Portrait & wedding photography View A7 IV

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.

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.

Portrait & Wedding Photography — A7 IV (2021): The full-frame portrait benchmark — 33MP, AI Eye AF, and exceptional skin-tone rendering in a pro-grade hybrid body.

↓ 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

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

A7 IV (2021)

  • You want a high-resolution full-frame all-rounder for portraits, weddings, or travel
  • You're stepping up from APS-C or a DSLR and want the best all-round full-frame body under £3,000
  • You shoot a mix of stills and video and need a single body that handles both seriously
  • You want access to the widest lens ecosystem in the mirrorless market

Quick take: The a7 iv has the highest resolution at 33mp; the canon eos 90d is the most affordable; only the canon eos 90d, a7 iv are weather sealed. Scroll down for the full spec breakdown.

Full specifications

Specification Canon EOS 90D (2019)EOS R8 (2023)A7 IV (2021)
Price £849 £1,099 £2,299
Sensor 32.5MP APS-C CMOS (Dual Pixel AF) 24.2MP Full-frame BSI CMOS 33MP Full-frame BSI Exmor R CMOS
Resolution 32.5MP 24.2MP 33.0MP
Video 4K/30p (1.6× crop), FHD/120p 4K/60p oversampled 10-bit, FHD/180p 4K/60p oversampled, 10-bit internal, S-Log3, S-Cinetone
Autofocus Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) Dual Pixel CMOS AF II, 1053 zones, eye/face/subject tracking 759-point phase-detect, AI subject recognition
Stabilisation None (no IBIS) None (no IBIS) 5-axis IBIS, 5.5 stops
Burst Rate 10fps mechanical 6fps mechanical, 40fps electronic 10fps mechanical, 30fps electronic
Battery Life ~1300 shots (CIPA with OVF) ~220 shots (CIPA) ~580 shots (CIPA)
Weight 701g body only 461g body only 659g body only
Dimensions 140.7 × 104.8 × 76.8mm 132.5 × 86.1 × 70.0mm 131.3 × 96.4 × 79.8mm
Weather Sealed Yes No Yes
Viewfinder Optical pentaprism, 100% coverage, 0.95× magnification EVF, 2.36M dots, 0.59× EVF, 3.69M dots, 0.78× magnification
Screen 3.0" vari-angle touchscreen 3.0" fully articulating touchscreen 3.0" vari-angle touchscreen
Mount Canon EF / EF-S Canon RF mount (full-frame) Sony FE (full-frame E-mount)
Memory Cards Dual SD UHS-II slots Single SD UHS-II slot Dual slots: CFexpress Type A + SD UHS-II
Connectivity USB 2.0, Bluetooth, Wi-Fi USB-C, Bluetooth, Wi-Fi USB-C (3.2 Gen 2), Bluetooth, Wi-Fi
⚡ Compare specs side by side Canon EOS 90D prices → EOS R8 prices → A7 IV prices →

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