• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 12,800
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

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Differences

Canon T4i advantages over Olympus E-M10

  • 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 1.3 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 320 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
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos

Olympus E-M10 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
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Higher effective ISO
    884 vs 722 iso
    Take photos in low light with less noise
  • Thinner
    45 mm vs 78 mm
    Thinner
  • Lighter weight
    515g vs 1039g
    Lighter weight
  • More viewfinder magnification
    0.58x 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
    8.1 fps vs 4.8 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    8.1 fps vs 5.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    15 vs 6 shots
    Larger buffer for RAW shots (burst mode)

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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

Buy the Canon T4i

Your purchases support this site

Buy the Olympus E-M10

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.

  • Great image quality especially from RAW files; Excellent dynamic range for a Four Thirds sensor; Very good high ISO performance; Realistic colors and excellent hue accuracy; Built-in Wi-Fi with remote control and sharing features; Improved HD video; Lightweight and very portable; Built-in pop-up flash; Minimal EVF lag time.

  • Contrast-Detect AF struggles with small and low-contrast subjects; Mediocre battery life; No external microphone or headphone jack; Mediocre burst speed with continuous AF; No weather sealing; Heavy-handed high ISO noise reduction.

The Competition

Compared to Canon T5i

Canon T4i
Canon T5i
  • $475
  • APS-C
  • More telephoto lens reach
  • $495
  • APS-C
  • Lighter weight
Olympus E-M10
Canon T5i
  • $419
  • 4/3
  • Focus peaking
  • Less expensive
  • $495
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Canon T3i

Canon T4i
Canon T3i
  • $475
  • APS-C
  • Touchscreen
  • Fast startup
  • $549
  • APS-C
Olympus E-M10
Canon T3i
  • $419
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $549
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Sony A57

Canon T4i
Sony A57
  • $475
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $800
  • APS-C
  • Focus peaking
  • Larger sensor
Olympus E-M10
Sony A57
  • $419
  • 4/3
  • Lens selection
  • Touchscreen
  • $800
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Pentax K-30

Canon T4i
Pentax K-30
  • $475
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $525
  • APS-C
  • Focus peaking
  • Larger sensor
Olympus E-M10
Pentax K-30
  • $419
  • 4/3
  • Less expensive
  • Touchscreen
  • $525
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Panasonic GX7

Canon T4i
Panasonic GX7
  • $475
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $497
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
Olympus E-M10
Panasonic GX7
  • $419
  • 4/3
  • Higher effective ISO
  • Lacks anti-aliasing filter
  • $497
  • 4/3
  • In-camera panoramas
  • Fast startup
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