• APS-C 369.7mm2
  • 10.1 megapixels
  • ISO 100 - 1600
  • APS-C 369.7mm2
  • 15.1 megapixels
  • ISO 100 - 3200

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Differences

Canon 40D advantages over Canon 50D

  • Bigger pixels
    ~ 6.10 vs 4.99 microns
    Better low-light and dynamic range (all else equal)
  • Longer stills battery life
    More info 800 vs 640 shots
    Capture more photos
  • Bigger JPEG buffer
    Unlimited vs 43 shots
    Take more JPEG shots before waiting (burst mode)

Canon 50D advantages over Canon 40D

  • Fast startup
    ~0.30 vs 0.4 sec
    Faster startup lets you catch the moment
  • HDMI out
    HDMI out vs None
    Use an external screen to monitor or review video
  • More dots on screen
    920k vs 230k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    15.1 vs 10.1 megapixels
    Higher resolution photos
  • Higher extended ISO
    12800 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • Pentaprism viewfinder
    Both provide
    Much better viewfinder picture fidelity
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

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
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • 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
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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

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Review Excerpt

The Competition

Compared to Pentax K20D

Canon 40D
Pentax K20D
  • $1299
  • APS-C
  • Bigger pixels
  • Higher effective ISO
  • $800
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Canon 50D
Pentax K20D
  • $1000
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $800
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization

Compared to Samsung GX-20

Canon 40D
Samsung GX-20
  • $1299
  • APS-C
  • Bigger pixels
  • Faster shutter
  • $1400
  • APS-C
  • In-Camera Image Stabilization
  • More pixels
Canon 50D
Samsung GX-20
  • $1000
  • APS-C
  • HDMI out
  • More dots on screen
  • $1400
  • APS-C
  • In-Camera Image Stabilization

Compared to Pentax K-7

Canon 40D
Pentax K-7
  • $1299
  • APS-C
  • Bigger pixels
  • Fast startup
  • $1300
  • APS-C
  • In-Camera Image Stabilization
  • HDMI out
Canon 50D
Pentax K-7
  • $1000
  • APS-C
  • Fast startup
  • Higher effective ISO
  • $1300
  • APS-C
  • In-Camera Image Stabilization

Compared to Sony DSLR-A550

Canon 40D
Sony DSLR-A550
  • $1299
  • APS-C
  • Lens selection
  • Bigger pixels
  • $859
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Canon 50D
Sony DSLR-A550
  • $1000
  • APS-C
  • Lens selection
  • Fast startup
  • $859
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization

Compared to Canon T2i

Canon 40D
Canon T2i
  • $1299
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $692
  • APS-C
  • Less expensive
  • Higher effective ISO
Canon 50D
Canon T2i
  • $1000
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $692
  • APS-C
  • Less expensive
  • Higher effective ISO
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