• APS-C 337.5mm2
  • 32.5 megapixels
  • ISO 100 - 25,600
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Canon 90D advantages over Olympus E-M5 III

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Longer stills battery life
    More info 1300 vs 310 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More pixels
    32.5 vs 20.4 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Bigger JPEG buffer
    57 vs 26 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M5 III advantages over Canon 90D

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Thinner
    49 mm vs 76 mm
    Thinner
  • More viewfinder magnification
    0.68x vs 0.59x
    Get a bigger view of the scene through the eye-level viewfinder
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    30.0 fps vs 10.0 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 10.0 fps
    Faster RAW shooting in burst mode
  • Faster shutter
    1/32000 vs 1/16000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Tilt-swivel screen
    Both provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Both provide
    Usually improves live view and video AF performance
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Dual card slots
    Neither provide
    Gives you more storage flexibility

User reviews

Buy From

Your purchases support this site

Buy the Canon 90D

Your purchases support this site

Buy the Olympus E-M5 III

Review Excerpt

  • Highest resolution Canon APS-C camera yet; Great image quality; Faster 10fps burst shooting; Very fast autofocus; Dual Pixel CMOS AF in Live View; 4K video; 1080p120 slow-mo video.

  • Low-pass filter reduces fine detail from high-res sensor; High ISO performance isn't as good as some rival cameras; Video recording limited to 29:59.

  • Improved image quality; Very good dynamic range & high ISO performance for a modern MFT sensor; Very fast AF; Excellent image stabilization; 4K video recording; Weather-sealed build quality.

  • Below average battery life; Small size can be awkward with long, heavy lenses; One SD card slot.

The Competition

Compared to Canon 80D

Canon 90D
Canon 80D
  • $1199
  • APS-C
  • Shoot 4K video
  • Built-in Bluetooth
  • $899
  • APS-C
  • Less expensive
  • Bigger pixels
Olympus E-M5 III
Canon 80D
  • $999
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $899
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Canon 77D

Canon 90D
Canon 77D
  • $1199
  • APS-C
  • Shoot 4K video
  • Longer stills battery life
  • $550
  • APS-C
  • Less expensive
  • NFC
Olympus E-M5 III
Canon 77D
  • $999
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $550
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Nikon D7500

Canon 90D
Nikon D7500
  • $1199
  • APS-C
  • Tilt-swivel screen
  • On-sensor phase detect
  • $997
  • APS-C
  • Bigger pixels
  • Fast startup
Olympus E-M5 III
Nikon D7500
  • $999
  • 4/3
  • Focus peaking
  • Tilt-swivel screen
  • $997
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Panasonic G100

Canon 90D
Panasonic G100
  • $1199
  • APS-C
  • Larger sensor
  • On-sensor phase detect
  • $598
  • 4/3
  • Less expensive
  • Focus peaking
Olympus E-M5 III
Panasonic G100
  • $999
  • 4/3
  • In-Camera Image Stabilization
  • High resolution composite
  • $598
  • 4/3
  • Less expensive
  • In-camera panoramas

Compared to Olympus E-M10 IV

Canon 90D
Olympus E-M10 IV
  • $1199
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $700
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M5 III
Olympus E-M10 IV
  • $999
  • 4/3
  • Tilt-swivel screen
  • High resolution composite
  • $700
  • 4/3
  • Longer video battery life
  • Internal flash
Compare Other Cameras?