• APS-C 368.2mm2
  • 16.2 megapixels
  • ISO 100 - 6400
  • APS-C 337.5mm2
  • 32.5 megapixels
  • ISO 100 - 25,600

Buy From

Differences

Nikon D5100 advantages over Canon 90D

  • Bigger pixels
    ~ 4.79 vs 3.23 microns
    Better low-light and dynamic range (all else equal)
  • Lighter weight
    829g vs 1216g
    Lighter weight
  • Bigger JPEG buffer
    100 vs 57 shots
    Take more JPEG shots before waiting (burst mode)

Canon 90D advantages over Nikon D5100

  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 1300 vs 660 shots
    Capture more photos
  • More telephoto lens reach
    216 mm vs 83 mm
    Capture objects farther away with the kit lens
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More cross-type AF points
    45 vs 1
    Cross-type AF points improve autofocus performance
  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • Newer
    5 years vs 13 years old
    Newer cameras often support more advanced features
  • Less shutter lag
    0.13 vs 0.27 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.59x vs 0.52x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    32.5 vs 16.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • More AF points
    45 vs 11
    More AF points improve autofocus
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    10.0 fps vs 3.9 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    10.0 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    27 vs 13 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • 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 Nikon D5100

Your purchases support this site

Buy the Canon 90D

Review Excerpt

  • Side-mounted tilt / swivel LCD screen; same sensor and processing as the Nikon D7000; good speed and battery life; in-camera HDR and filter effects; Full HD video capture with aperture control; audio levels control and external microphone jack.

  • AF-S lens mount doesn't offer autofocus with screw-drive lenses; popup flash isn't the greatest; no built-in wireless flash control; HDR function doesn't microalign source images.

  • 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.

The Competition

Compared to Sony A55

Nikon D5100
Sony A55
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $734
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas
Canon 90D
Sony A55
  • $1099
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $734
  • APS-C
  • In-Camera Image Stabilization
  • Bigger pixels

Compared to Sony A33

Nikon D5100
Sony A33
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $540
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Canon 90D
Sony A33
  • $1099
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $540
  • APS-C
  • In-Camera Image Stabilization
  • Bigger pixels

Compared to Sony A57

Nikon D5100
Sony A57
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $800
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Canon 90D
Sony A57
  • $1099
  • APS-C
  • Tilt-swivel screen
  • Lens selection
  • $800
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization

Compared to Canon 80D

Nikon D5100
Canon 80D
  • $650
  • APS-C
  • Bigger pixels
  • Lighter weight
  • $935
  • APS-C
  • Touchscreen
  • Built-in Wi-Fi
Canon 90D
Canon 80D
  • $1099
  • APS-C
  • Shoot 4K video
  • Built-in Bluetooth
  • $935
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Nikon D7500

Nikon D5100
Nikon D7500
  • $650
  • APS-C
  • Tilt-swivel screen
  • Lighter weight
  • $947
  • APS-C
  • Shoot 4K video
  • Touchscreen
Canon 90D
Nikon D7500
  • $1099
  • APS-C
  • Tilt-swivel screen
  • On-sensor phase detect
  • $947
  • APS-C
  • Bigger pixels
  • Fast startup
Compare Other Cameras?