• 0.98 inch 285.7mm2
  • 4.6 megapixels
  • 28.00mm (35mm eq.)
  • APS-C 372.9mm2
  • 12.3 megapixels
  • ISO 200 - 3200

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Differences

Sigma DP1 advantages over Nikon D300S

  • Bigger pixels
    ~ 7.84 vs 5.50 microns
    Better low-light and dynamic range (all else equal)
  • Thinner
    50 mm vs 74 mm
    Thinner
  • Lighter weight
    278g vs 951g
    Lighter weight

Nikon D300S advantages over Sigma DP1

  • Larger sensor
    APS-C vs 0.98 inch
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Fast startup
    ~0.30 vs 3.9 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 950 vs 250 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • 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
    922k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Less shutter lag
    0.23 vs 1.53 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    12.3 vs 4.6 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Longer exposure
    30 vs 15 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    7.1 fps vs 3.8 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    26 vs 3 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/8000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    6400 vs 800 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
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities

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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

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 Nikon D90

Sigma DP1
Nikon D90
  • $999
  • 0.98 inch
  • Less expensive
  • Bigger pixels
  • $1300
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Nikon D300S
Nikon D90
  • $1697
  • APS-C
  • External Mic Jack
  • More cross-type AF points
  • $1300
  • APS-C
  • Higher effective ISO
  • Bigger JPEG buffer

Compared to Canon 50D

Sigma DP1
Canon 50D
  • $999
  • 0.98 inch
  • Less expensive
  • Bigger pixels
  • $1000
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Nikon D300S
Canon 50D
  • $1697
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
  • $1000
  • APS-C
  • Less shutter lag
  • More pixels

Compared to Sony DSLR-A550

Sigma DP1
Sony DSLR-A550
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $859
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Nikon D300S
Sony DSLR-A550
  • $1697
  • APS-C
  • Lens selection
  • Fast startup
  • $859
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen

Compared to Sony DSLR-A500

Sigma DP1
Sony DSLR-A500
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $850
  • APS-C
  • Less expensive
  • Larger sensor
Nikon D300S
Sony DSLR-A500
  • $1697
  • APS-C
  • Lens selection
  • Fast startup
  • $850
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen

Compared to Pentax K-5

Sigma DP1
Pentax K-5
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $800
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
Nikon D300S
Pentax K-5
  • $1697
  • APS-C
  • Fast startup
  • Longer stills battery life
  • $800
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
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