• APS-C 369.7mm2
  • 15.1 megapixels
  • ISO 100 - 3200
  • APS-C 372.9mm2
  • 12.3 megapixels
  • ISO 200 - 3200

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Differences

Canon 50D advantages over Nikon D300S

  • Less shutter lag
    0.13 vs 0.23 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    15.1 vs 12.3 megapixels
    Higher resolution photos
  • Bigger JPEG buffer
    43 vs 26 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    12800 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Nikon D300S advantages over Canon 50D

  • Higher effective ISO
    787 vs 696 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 950 vs 640 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    15 vs 9
    Cross-type AF points improve autofocus performance
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • More AF points
    51 vs 9
    More AF points improve autofocus
  • Faster JPEG shooting
    7.1 fps vs 6.3 fps
    Faster JPEG shooting (burst mode)

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
  • 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

  • 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
  • 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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Buy the Nikon D300S

Review Excerpt

  • Rugged construction; 51-point AF system capable of sophisticated AF tracking; Large, bright optical viewfinder; 7 fps JPEG or 12-bit RAW burst mode; HD Video capture.

  • 14-bit RAW mode slows continuous shooting from 7 fps to 2.7 fps; Somewhat slow AF for a camera at this level, especially in 51-point auto-area mode; Video capture tops out at 720p24.

The Competition

Compared to Pentax K20D

Canon 50D
Pentax K20D
  • $1000
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $800
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Nikon D300S
Pentax K20D
  • $1755
  • APS-C
  • Fast startup
  • Higher effective ISO
  • $800
  • APS-C
  • In-Camera Image Stabilization
  • More pixels

Compared to Samsung GX-20

Canon 50D
Samsung GX-20
  • $1000
  • APS-C
  • HDMI out
  • More dots on screen
  • $1400
  • APS-C
  • In-Camera Image Stabilization
Nikon D300S
Samsung GX-20
  • $1755
  • APS-C
  • Higher effective ISO
  • External Mic Jack
  • $1400
  • APS-C
  • In-Camera Image Stabilization
  • Lighter weight

Compared to Pentax K-7

Canon 50D
Pentax K-7
  • $1000
  • APS-C
  • Fast startup
  • Higher effective ISO
  • $1300
  • APS-C
  • In-Camera Image Stabilization
Nikon D300S
Pentax K-7
  • $1755
  • APS-C
  • Fast startup
  • Higher effective ISO
  • $1300
  • APS-C
  • In-Camera Image Stabilization
  • Less shutter lag

Compared to Sony DSLR-A550

Canon 50D
Sony DSLR-A550
  • $1000
  • APS-C
  • Lens selection
  • Fast startup
  • $859
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Nikon D300S
Sony DSLR-A550
  • $1755
  • APS-C
  • Lens selection
  • Fast startup
  • $859
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen

Compared to Sigma SD1 Merrill

Canon 50D
Sigma SD1 Merrill
  • $1000
  • APS-C
  • Lens selection
  • Fast startup
  • $2299
  • APS-C
  • Doesn't require an AA filter
  • Wider angle kit lens
Nikon D300S
Sigma SD1 Merrill
  • $1755
  • APS-C
  • Lens selection
  • Fast startup
  • $2299
  • APS-C
  • More pixels
  • Doesn't require an AA filter
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