• APS-C 369.0mm2
  • 19.6 megapixels
  • 45.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 20.2 megapixels
  • 28.00mm - 140.00mm (35mm eq.)

Buy From

Differences

Sigma dp2 Quattro advantages over Ricoh G900

  • Larger sensor
    APS-C vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.33 vs 1.19 microns
    Better low-light and dynamic range (all else equal)
  • Larger lens aperture
    f/2.8 vs f/3.5
    Take photos in low-light or isolate your subject
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré
  • Longer exposure
    30 vs 4 sec
    Long exposures for night shots

Ricoh G900 advantages over Sigma dp2 Quattro

  • Less expensive
    $696 vs $899
    Save money for lenses or accessories
  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • More telephoto lens reach
    140 mm vs 45 mm
    Capture objects farther away
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Longer stills battery life
    More info 340 vs 200 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    33 mm vs 81 mm
    Thinner
  • Newer
    5 years vs 10 years old
    Newer cameras often support more advanced features
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Lighter weight
    247g vs 489g
    Lighter weight
  • Wider angle lens
    28 mm vs 45 mm
    Capture more of the scene
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.

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
  • 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
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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

Your purchases support this site

Buy the Sigma dp2 Quattro
Sigma DP2 Quattro
All dp2 Quattro Deals

Your purchases support this site

Buy the Ricoh G900
Ricoh G900
All G900 Deals

Review Excerpt

  • Phenomenal detail and "depth" at low ISOs; Extremely high resolution; Incredible image quality for the price and size (at low ISOs); Fast x-sync speeds; Unique design is unconventional but comfortable and balanced.

  • Poor high ISO performance; Very sluggish buffer clearing; Poor low-light AF; No built-in flash; Very limited third-party RAW file support; Bundled Sigma Photo Pro RAW software is slow and buggy.

  • Read our Sigma dp2 Quattro Review

The Competition

Compared to Sigma DP1 Merrill

Sigma dp2 Quattro
Sigma DP1 Merrill
  • $899
  • APS-C
  • More telephoto lens reach
  • Longer stills battery life
  • $849
  • APS-C
  • Bigger pixels
  • Wider angle lens

Compare Sigma dp2 Quattro vs Sigma DP1 Merrill

Ricoh G900
Sigma DP1 Merrill
  • $746
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Ricoh G900 vs Sigma DP1 Merrill

Compared to Sigma dp1 Quattro

Sigma dp2 Quattro
Sigma dp1 Quattro
  • $899
  • APS-C
  • More telephoto lens reach
  • $999
  • APS-C
  • Wider angle lens

Compare Sigma dp2 Quattro vs Sigma dp1 Quattro

Ricoh G900
Sigma dp1 Quattro
  • $746
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $999
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Ricoh G900 vs Sigma dp1 Quattro

Compared to Sigma dp3 Quattro

Sigma dp2 Quattro
Sigma dp3 Quattro
  • $899
  • APS-C
  • Wider angle lens
  • $999
  • APS-C
  • More telephoto lens reach

Compare Sigma dp2 Quattro vs Sigma dp3 Quattro

Ricoh G900
Sigma dp3 Quattro
  • $746
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization
  • $999
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Ricoh G900 vs Sigma dp3 Quattro

Compared to Ricoh WG-30w

Sigma dp2 Quattro
Ricoh WG-30w
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $450
  • 1/2.3 inch
  • Waterproof
  • In-Camera Image Stabilization

Compare Sigma dp2 Quattro vs Ricoh WG-30w

Ricoh G900
Ricoh WG-30w
  • $746
  • 1/2.3 inch
  • Built-in GPS
  • Newer
  • $450
  • 1/2.3 inch
  • Built-in Wi-Fi
  • Shoots 1080p video

Compare Ricoh G900 vs Ricoh WG-30w

Compared to Ricoh WG-6

Sigma dp2 Quattro
Ricoh WG-6
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $298
  • 1/2.3 inch
  • Less expensive
  • Waterproof

Compare Sigma dp2 Quattro vs Ricoh WG-6

Ricoh G900
Ricoh WG-6
  • $746
  • 1/2.3 inch
  • $298
  • 1/2.3 inch
  • Less expensive

Compare Ricoh G900 vs Ricoh WG-6

Compare Other Cameras?