• 1/1.7 inch 43.3mm2
  • 12.1 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600

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Differences

Canon G15 advantages over Olympus E-M1

  • Less expensive
    $649* vs $1299
    Save money for lenses or accessories
  • Longer stills battery life
    More info 770 vs 350 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    40 mm vs 63 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/320 sec
    Reduce the effect of ambient light in flash shots
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    350g vs 497g
    Lighter weight

Olympus E-M1 advantages over Canon G15

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    4/3 vs 1/1.7 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.75 vs 1.90 microns
    Better low-light and dynamic range (all else equal)
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Fast startup
    ~0.80 vs 2.2 sec
    Faster startup lets you catch the moment
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Better color depth
    23.0 vs 19.9 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    757 vs 165 iso
    Take photos in low light with less noise
  • More dynamic range
    12.7 vs 11.5 evs
    Retain detail in highlight and shadows
  • 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
  • Less shutter lag
    0.14 vs 0.46 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    16.1 vs 12.1 megapixels
    Higher resolution photos
  • Longer exposure
    60 vs 15 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    50 vs 10 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    9.9 fps vs 1.1 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    50 vs 20 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • 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 Olympus E-M1

Review Excerpt

  • Solid built and ergonomic, comfortable feel; Excellent f/1.8-2.8 5x optical zoom lens; Improved AF speed; Advanced photographic features, including PASM dial and RAW capture.

  • LCD screen no longer articulated; Optical viewfinder not very accurate and exhibits parallax; No WiFi or GPS.

  • Exceptional rugged, weather-proof, professional build; Lightning fast contrast-detect AF, and phase-detect AF that makes Four Thirds lenses far more responsive; Tons of useful physical controls with immense customizability; Arguably the best image quality of any Micro Four Thirds camera we've tested to date; Large, sharp, high-resolution electronic viewfinder; Advanced Wi-Fi capabilities, including remote control shooting in PASM exposure modes.

  • Bigger and heavier than many other compact system cameras; Most expensive Micro Four Thirds camera on the market to date; Menu system and customization options have a steep learning curve; No optical low-pass filter means greater risk of moire; No built-in flash.

The Competition

Compared to Olympus E-M5

Canon G15
Olympus E-M5
  • $649
  • 1/1.7 inch
  • Less expensive
  • Longer stills battery life
  • $799
  • 4/3
  • Larger sensor
  • Bigger pixels
Olympus E-M1
Olympus E-M5
  • $1101
  • 4/3
  • Focus peaking
  • Fast startup
  • $799
  • 4/3
  • Less expensive
  • Thinner

Compared to Panasonic GH3

Canon G15
Panasonic GH3
  • $649
  • 1/1.7 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $1149
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
Olympus E-M1
Panasonic GH3
  • $1101
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $1149
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compared to Pentax MX-1

Canon G15
Pentax MX-1
  • $649
  • 1/1.7 inch
  • Eye-level viewfinder
  • More telephoto lens reach
  • $400
  • 1/1.7 inch
  • In-camera panoramas
  • Tiltable Screen
Olympus E-M1
Pentax MX-1
  • $1101
  • 4/3
  • Focus peaking
  • Larger sensor
  • $400
  • 1/1.7 inch
  • In-camera panoramas
  • Internal flash

Compared to Canon G16

Canon G15
Canon G16
  • $649
  • 1/1.7 inch
  • Shoots 24p video
  • Bigger JPEG buffer
  • $649
  • 1/1.7 inch
  • Focus peaking
  • Built-in Wi-Fi
Olympus E-M1
Canon G16
  • $1101
  • 4/3
  • Larger sensor
  • Bigger pixels
  • $649
  • 1/1.7 inch
  • Less expensive
  • Longer stills battery life

Compared to Canon N100

Canon G15
Canon N100
  • $649
  • 1/1.7 inch
  • Eye-level viewfinder
  • RAW file ability
  • $349
  • 1/1.7 inch
  • Touchscreen
  • Tiltable Screen
Olympus E-M1
Canon N100
  • $1101
  • 4/3
  • Focus peaking
  • Larger sensor
  • $349
  • 1/1.7 inch
  • Internal flash
  • Thinner
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