• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 35.00mm - 140.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 28.00mm - 140.00mm (35mm eq.)

Buy From

Differences

Canon A3100 IS advantages over Canon D20

  • Less expensive
    $180 vs $350 (MSRP)
    Save money for lenses or accessories
  • Larger lens aperture
    f/2.7 vs f/3.9
    Take photos in low-light or isolate your subject
  • Lighter weight
    154g vs 227g
    Lighter weight

Canon D20 advantages over Canon A3100 IS

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Fast startup
    ~1.60 vs 2.1 sec
    Faster startup lets you catch the moment
  • 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
    461k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Less shutter lag
    0.33 vs 0.48 sec
    Focus and take a photo quickly (wide angle)
  • Wider angle lens
    28 mm vs 35 mm
    Capture more of the scene
  • Faster JPEG shooting
    1.9 fps vs 0.8 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    3200 vs 1600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Neither provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Manual focus
    Neither provide
    AF is for the weak. Real photographers focus manually.
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Review Excerpt

  • Good still and video image quality; Attractive, comfortable design; 3-inch LCD monitor that's easy to view in even bright sunlight.

  • Feature set lags behind current (2013) models; Performance average at best; Poor wide-angle optical quality; High chromatic aberration and corner softness.

The Competition

Compared to Canon A1100 IS

Canon A3100 IS
Canon A1100 IS
  • $85
  • 1/2.3 inch
  • More dots on screen
  • $200
  • 1/2.3 inch
  • Eye-level viewfinder
  • Longer stills battery life
Canon D20
Canon A1100 IS
  • $330
  • 1/2.3 inch
  • Waterproof
  • HDMI out
  • $200
  • 1/2.3 inch
  • Less expensive
  • Eye-level viewfinder

Compared to Panasonic DMC-FH1

Canon A3100 IS
Panasonic DMC-FH1
  • $85
  • 1/2.3 inch
  • $160
  • 1/2.33 inch
  • Longer stills battery life
  • Manual focus
Canon D20
Panasonic DMC-FH1
  • $330
  • 1/2.3 inch
  • Waterproof
  • HDMI out
  • $160
  • 1/2.33 inch
  • Less expensive
  • Larger lens aperture

Compared to Canon A3000 IS

Canon A3100 IS
Canon A3000 IS
  • $85
  • 1/2.3 inch
  • More pixels
  • $108
  • 1/2.3 inch
  • Less expensive
Canon D20
Canon A3000 IS
  • $330
  • 1/2.3 inch
  • Waterproof
  • Longer stills battery life
  • $108
  • 1/2.3 inch
  • Less expensive
  • Larger lens aperture

Compared to Fujifilm XP150

Canon A3100 IS
Fujifilm XP150
  • $85
  • 1/2.3 inch
  • Less expensive
  • Larger lens aperture
  • $272
  • 1/2.3 inch
  • Waterproof
  • Longer stills battery life
Canon D20
Fujifilm XP150
  • $330
  • 1/2.3 inch
  • HDMI out
  • Shoots 24p video
  • $272
  • 1/2.3 inch
  • Less expensive
  • More pixels

Compared to Canon D30

Canon A3100 IS
Canon D30
  • $85
  • 1/2.3 inch
  • Less expensive
  • Larger lens aperture
  • $299
  • 1/2.3 inch
  • Waterproof
  • Built-in GPS
Canon D20
Canon D30
  • $330
  • 1/2.3 inch
  • $299
  • 1/2.3 inch
  • Built-in GPS
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