• APS-C 337.5mm2
  • 8.3 megapixels
  • ISO 100 - 1600
  • 35mm 864.0mm2
  • 24.1 megapixels
  • ISO 100 - 102,400

Buy From

Differences

Canon 20D advantages over Canon R3

  • Less expensive
    $1499 vs $5999 (MSRP)
    Save money for lenses or accessories
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Lighter weight
    685g vs 1015g
    Lighter weight

Canon R3 advantages over Canon 20D

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    No vs No
    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
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    3 years vs 20 years old
    Newer cameras often support more advanced features
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    4150k vs 118k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More viewfinder magnification
    0.76x vs 0.56x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.1 vs 8.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    30.0 fps vs 4.8 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    150 vs 31 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    204800 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in GPS
    Neither provide
    Geotag your photos

Buy From

Your purchases support this site

Your purchases support this site

Review Excerpt

The Competition

Compared to Canon R5

Canon 20D
Canon R5
  • $1499
  • APS-C
  • Bigger pixels
  • Longer stills battery life
  • $3399
  • 35mm
  • Focus peaking
  • Larger sensor
Canon R3
Canon R5
  • $5999
  • 35mm
  • Bigger pixels
  • Longer stills battery life
  • $3399
  • 35mm
  • Lighter weight
  • More pixels

Compared to Canon R6

Canon 20D
Canon R6
  • $1499
  • APS-C
  • Internal flash
  • Top deck display
  • $2149
  • 35mm
  • Focus peaking
  • Larger sensor
Canon R3
Canon R6
  • $5999
  • 35mm
  • Top deck display
  • Newer
  • $2149
  • 35mm
  • Lighter weight

Compared to Leica SL2-S

Canon 20D
Leica SL2-S
  • $1499
  • APS-C
  • Less expensive
  • Internal flash
  • $4895
  • 35mm
  • Focus peaking
  • Larger sensor
Canon R3
Leica SL2-S
  • $5999
  • 35mm
  • Tilt-swivel screen
  • On-sensor phase detect
  • $4895
  • 35mm
  • Less expensive
  • Slower slow-motion

Compared to Canon R5 C

Canon 20D
Canon R5 C
  • $1499
  • APS-C
  • Less expensive
  • Bigger pixels
  • $4499
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
Canon R3
Canon R5 C
  • $5999
  • 35mm
  • Bigger pixels
  • More dots on screen
  • $4499
  • 35mm
  • Less expensive
  • Lighter weight

Compared to Canon R6 Mark II

Canon 20D
Canon R6 Mark II
  • $1499
  • APS-C
  • Internal flash
  • Top deck display
  • $2516
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
Canon R3
Canon R6 Mark II
  • $5999
  • 35mm
  • Top deck display
  • More dots on screen
  • $2516
  • 35mm
  • Slower slow-motion
  • Newer
Compare Other Cameras?