• APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 25,600
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

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Differences

Canon 77D advantages over Olympus E-M1 Mark III

  • Less expensive
    $799 vs $2499
    Save money for lenses or accessories
  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • 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
    24.2 vs 20.4 megapixels
    Higher resolution photos
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M1 Mark III advantages over Canon 77D

  • 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
  • Shoot 4K video
    4K (DCI) vs 1080p
    Make sure you have a fast computer
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Newer
    5 years vs 8 years old
    Newer cameras often support more advanced features
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/32000 vs 1/4000 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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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

Common Weaknesses

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

User reviews

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Buy the Olympus E-M1 Mark III
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  • Body Only
  • Kit with 12-100mm f/4 Lens
  • Kit with 12-40mm Lens
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Review Excerpt

  • Very good image quality; Improved dynamic range at low ISOs; Very fast autofocus; Dual Pixel CMOS AF in Live View; Much improved RAW buffer depth; 1080/60p video; Quick Control Dial & top-panel LCD screen.

  • Default JPEGs slightly soft straight out of camera; Dynamic range & high ISOs lag behind competing cameras; No 4K video resolution.

  • Read our Canon 77D Review

The Competition

Compared to Canon T6s

Canon 77D
Canon T6s
  • $550
  • APS-C
  • Fast startup
  • Built-in Bluetooth
  • $619
  • APS-C
  • Bigger JPEG buffer

Compare Canon 77D vs Canon T6s

Olympus E-M1 Mark III
Canon T6s
  • $1649
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $619
  • APS-C
  • Less expensive
  • Larger sensor

Compare Olympus E-M1 Mark III vs Canon T6s

Compared to Pentax K-70

Canon 77D
Pentax K-70
  • $550
  • APS-C
  • Touchscreen
  • Fast startup
  • $597
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon 77D vs Pentax K-70

Olympus E-M1 Mark III
Pentax K-70
  • $1649
  • 4/3
  • Shoot 4K video
  • Touchscreen
  • $597
  • APS-C
  • Less expensive
  • Larger sensor

Compare Olympus E-M1 Mark III vs Pentax K-70

Compared to Nikon D7500

Canon 77D
Nikon D7500
  • $550
  • APS-C
  • Tilt-swivel screen
  • NFC
  • $797
  • APS-C
  • Larger sensor
  • Shoot 4K video

Compare Canon 77D vs Nikon D7500

Olympus E-M1 Mark III
Nikon D7500
  • $1649
  • 4/3
  • Tilt-swivel screen
  • Focus peaking
  • $797
  • APS-C
  • Less expensive
  • Larger sensor

Compare Olympus E-M1 Mark III vs Nikon D7500

Compared to Panasonic G95

Canon 77D
Panasonic G95
  • $550
  • APS-C
  • Larger sensor
  • Fast startup
  • $848
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization

Compare Canon 77D vs Panasonic G95

Olympus E-M1 Mark III
Panasonic G95
  • $1649
  • 4/3
  • High resolution composite
  • On-sensor phase detect
  • $848
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Olympus E-M1 Mark III vs Panasonic G95

Compared to OM System OM-1

Canon 77D
OM System OM-1
  • $550
  • APS-C
  • Larger sensor
  • NFC
  • $2200
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization

Compare Canon 77D vs OM System OM-1

Olympus E-M1 Mark III
OM System OM-1
  • $1649
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen

Compare Olympus E-M1 Mark III vs OM System OM-1

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