Canon EOS 90Dvs OM-5vs Pentax K-3 Mark 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
OM System OM-5 OM System OM-5 (2022) From £899 Best for Outdoor & adventure View OM-5
VS
Pentax Pentax K-3 Mark III Pentax Pentax K-3 Mark III (2021) From £1699 Best for DSLR enthusiasts & outdoor photographers View Pentax K-3 Mark 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.

Outdoor & Adventure — OM-5 (2022): The toughest camera at this price — IP53 weather sealing and 7.5-stop IBIS built for adventure photographers.

Dslr Enthusiasts & Outdoor Photographers — Pentax K-3 Mark III (2021): The finest APS-C DSLR ever made — class-leading weather sealing, optical viewfinder, 5-axis IBIS, and extraordinary build for photographers committed to DSLR.

↓ 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

OM-5 (2022)

  • You need weather sealing and in-body stabilisation in a compact, lightweight body
  • You hike, travel, or shoot outdoors and want serious protection without the weight penalty
  • You're in the MFT ecosystem and want a step up in capability from entry-level bodies

Pentax K-3 Mark III (2021)

  • You're a committed DSLR photographer with significant investment in Pentax glass
  • You shoot in extreme weather conditions and place build quality and reliability above everything
  • You prefer optical viewfinder performance and want the best modern APS-C DSLR available

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)OM-5 (2022)Pentax K-3 Mark III (2021)
Price £849 £899 £1,699
Sensor 32.5MP APS-C CMOS (Dual Pixel AF) 20.4MP Micro Four Thirds Live MOS 25.7MP APS-C BSI CMOS (AA-filterless)
Resolution 32.5MP 20.4MP 25.7MP
Video 4K/30p (1.6× crop), FHD/120p 4K/60p, 4K/120p Cinema4K 4K/30p, 1080p/60p
Autofocus Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) Phase-detect, 121 all-cross points, subject tracking SAFOX 13 phase-detect, 101-point (25 cross-type)
Stabilisation None (no IBIS) 5-axis IBIS, 7.5 stops (Dual IS with compatible lenses) 5.5-stop 5-axis IBIS (Shake Reduction III)
Burst Rate 10fps mechanical 30fps electronic, 10fps mechanical 12fps
Battery Life ~1300 shots (CIPA with OVF) ~370 shots (CIPA) 800 shots (CIPA)
Weight 701g body only 414g body only 820g body only
Dimensions 140.7 × 104.8 × 76.8mm 122.3 × 87.6 × 49.7mm 134.5 × 103.5 × 73.5mm
Weather Sealed Yes Yes Yes
Viewfinder Optical pentaprism, 100% coverage, 0.95× magnification EVF, 2.36M dots, 0.74× magnification Optical pentaprism, 100% coverage, 1.05× magnification
Screen 3.0" vari-angle touchscreen 3.0" fully articulating touchscreen 3.2" tilting touchscreen
Mount Canon EF / EF-S Micro Four Thirds Pentax KF-mount
Memory Cards Dual SD UHS-II slots Dual SD UHS-II slots Dual SD UHS-II
Connectivity USB 2.0, Bluetooth, Wi-Fi USB-C, Bluetooth, Wi-Fi USB-C, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS 90D prices → OM-5 prices → Pentax K-3 Mark III prices →

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