Canon EOS 90Dvs Olympus OM-D E-M5 IIIvs Sigma fp

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
Sigma Sigma fp Sigma Sigma fp (2019) From £1499 Best for Creative filmmakers & experimental photographers View Sigma fp

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.

Creative Filmmakers & Experimental Photographers — Sigma fp (2019): The smallest full-frame camera in the world — Cinema DNG RAW and L-mount flexibility in a pocket-sized body that rewards creative shooters.

↓ 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

Sigma fp (2019)

  • You're a filmmaker building a cinema rig where the smallest full-frame body is essential
  • You want L-mount compatibility to pair with Sigma Art or Leica SL lenses
  • You prioritise video and cinema colour over stills ergonomics and functionality

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)Sigma fp (2019)
Price £849 £699 £1,499
Sensor 32.5MP APS-C CMOS (Dual Pixel AF) 20.4MP Micro Four Thirds Live MOS 24.6MP full-frame Bayer CMOS
Resolution 32.5MP 20.4MP 24.6MP
Video 4K/30p (1.6× crop), FHD/120p 4K/30p, 1080p/120p 12-bit Cinema DNG RAW, 4K/24p, 1080p/120p
Autofocus Dual Pixel CMOS AF (live view), 45-point phase-detect (OVF) Hybrid phase/contrast AF with face/eye detection Contrast-detect AF with face/eye detection
Stabilisation None (no IBIS) 7.5-stop 5-axis IBIS None (lens-based only)
Burst Rate 10fps mechanical 30fps electronic / 10fps mechanical 18fps electronic
Battery Life ~1300 shots (CIPA with OVF) 390 shots (CIPA) 200 shots (CIPA)
Weight 701g body only 414g body only 422g body only
Dimensions 140.7 × 104.8 × 76.8mm 125.3 × 85.2 × 49.7mm 112.6 × 69.9 × 45.3mm
Weather Sealed Yes Yes No
Viewfinder Optical pentaprism, 100% coverage, 0.95× magnification 0.35" OLED EVF, 2.36M dots None
Screen 3.0" vari-angle touchscreen 3.0" fully articulating touchscreen 3.15" fixed touchscreen
Mount Canon EF / EF-S Micro Four Thirds Leica L-mount
Memory Cards Dual SD UHS-II slots Single SD UHS-I Single SD UHS-II + CFexpress Type B (via adapter)
Connectivity USB 2.0, Bluetooth, Wi-Fi Micro USB, Wi-Fi, Bluetooth USB-C 3.1, Wi-Fi, Bluetooth
⚡ Compare specs side by side Canon EOS 90D prices → Olympus OM-D E-M5 III prices → Sigma fp prices →

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