• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 12,800
  • 4/3 226.2mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

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Differences

Canon T4i advantages over Olympus E-M10 III

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Fast startup
    ~0.70 vs 1.0 sec
    Faster startup lets you catch the moment
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 440 vs 330 shots
    Capture more photos
  • More telephoto lens reach
    216 mm vs 84 mm
    Capture objects farther away with the kit lens
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Olympus E-M10 III advantages over Canon T4i

  • 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 (UHD) vs 1080p
    Make sure you have a fast computer
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Thinner
    49 mm vs 78 mm
    Thinner
  • Newer
    3 years vs 8 years old
    Newer cameras often support more advanced features
  • Lighter weight
    503g vs 1039g
    Lighter weight
  • Less shutter lag
    0.14 vs 0.27 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.62x vs 0.53x
    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
    8.6 fps vs 4.8 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    Unlimited vs 19 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    8.6 fps vs 5.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    33 vs 6 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

Similarities

Common Strengths

  • 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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Canon T4i

Your purchases support this site

Buy the Olympus E-M10 III

Review Excerpt

  • Excellent image quality; 9 cross-type AF points; Stereo microphones; Built-in touchscreen; Multi-shot modes.

  • Slow Live View and video autofocus; High ISO performance is unimproved; Below-average battery life; No dedicated AF illuminator.

  • Superbly-built, comfortable and compact body; Pairs beautifully with pancake kit lens; Excellent image quality; Excellent performance in most respects; Great single-shot autofocus; Really nice viewfinder and touch-screen display; Friendlier user interface courts amateurs.

  • Some controls are a bit small and tightly-packed; Hand grips are still a bit modestly-sized for larger lenses; Continuous and video autofocus just isn't up to snuff; New user interface can feel limiting to advanced photographers; Underwhelming battery life.

The Competition

Compared to Canon T5i

Canon T4i
Canon T5i
  • $799
  • APS-C
  • More telephoto lens reach
  • $539
  • APS-C
  • Lighter weight
Olympus E-M10 III
Canon T5i
  • $449
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $539
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Nikon D7000

Canon T4i
Nikon D7000
  • $799
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $699
  • APS-C
  • Larger sensor
  • Fast startup
Olympus E-M10 III
Nikon D7000
  • $449
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $699
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Canon T3i

Canon T4i
Canon T3i
  • $799
  • APS-C
  • Touchscreen
  • Fast startup
  • $549
  • APS-C
  • Less expensive
Olympus E-M10 III
Canon T3i
  • $449
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Pentax K-30

Canon T4i
Pentax K-30
  • $799
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $599
  • APS-C
  • Focus peaking
  • Larger sensor
Olympus E-M10 III
Pentax K-30
  • $449
  • 4/3
  • Shoot 4K video
  • Touchscreen
  • $599
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Olympus E-M10 II

Canon T4i
Olympus E-M10 II
  • $799
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $474
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M10 III
Olympus E-M10 II
  • $449
  • 4/3
  • Shoot 4K video
  • Newer
  • $474
  • 4/3
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