• APS-C 369.0mm2
  • 14.8 megapixels
  • 28.00mm (35mm eq.)
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 70.00mm (35mm eq.)

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Differences

Sigma DP1 Merrill advantages over Sony RX100 III

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.00 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • 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

Sony RX100 III advantages over Sigma DP1 Merrill

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Larger lens aperture
    f/1.8 vs f/2.8
    Take photos in low-light or isolate your subject
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Fast startup
    ~2.00 vs 2.9 sec
    Faster startup lets you catch the moment
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • More telephoto lens reach
    70 mm vs 28 mm
    Capture objects farther away
  • Longer stills battery life
    More info 320 vs 97 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    41 mm vs 63 mm
    Thinner
  • 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
  • Lighter weight
    287g vs 391g
    Lighter weight
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Less shutter lag
    0.15 vs 0.49 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    20.2 vs 14.8 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Wider angle lens
    24 mm vs 28 mm
    Capture more of the scene
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    10.0 fps vs 3.8 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    48 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    6.7 fps vs 3.8 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    26 vs 7 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Buy the Sigma DP1 Merrill
Sigma DP1 Merrill

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Buy the Sony RX100 III
Sony RX100 Mark III
All RX100 III Deals

Review Excerpt

  • Exceptionally detailed and uniquely beautiful image quality at low ISOs; Fast, sharp 28mm-equivalent lens; Simple, straightforward controls match camera's simple, straightforward (street photography) goals.

  • Fixed-focal-length lens; Image quality deteriorates significantly at ISO 800 and above; Overall sluggish performer; Falls short when capturing JPEGs; Terrible VGA-only video quality; Very poor battery life; No built-in flash.

  • Read our Sigma DP1 Merrill Review

  • Pocket-friendly design; Popup electronic viewfinder; Bright lens across the zoom range; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; Wi-Fi wireless networking

  • Feels a little unbalanced without an accessory grip; Not as much telephoto reach as its siblings; Noise processing is heavier-handed than in earlier models; Quite pricey for a fixed-lens camera

  • Read our Sony RX100 III Review

The Competition

Compared to Sony RX100

Sigma DP1 Merrill
Sony RX100
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $1074
  • 1 inch
  • Focus peaking
  • Less expensive

Compare Sigma DP1 Merrill vs Sony RX100

Sony RX100 III
Sony RX100
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Tiltable Screen
  • $1074
  • 1 inch
  • More telephoto lens reach
  • Faster RAW shooting

Compare Sony RX100 III vs Sony RX100

Compared to Sony RX100 II

Sigma DP1 Merrill
Sony RX100 II
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $598
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization

Compare Sigma DP1 Merrill vs Sony RX100 II

Sony RX100 III
Sony RX100 II
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Fast startup
  • $598
  • 1 inch
  • Less expensive
  • More telephoto lens reach

Compare Sony RX100 III vs Sony RX100 II

Compared to Canon G7X

Sigma DP1 Merrill
Canon G7X
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $1239
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization

Compare Sigma DP1 Merrill vs Canon G7X

Sony RX100 III
Canon G7X
  • $748
  • 1 inch
  • Eye-level viewfinder
  • In-camera panoramas
  • $1239
  • 1 inch
  • Touchscreen
  • More telephoto lens reach

Compare Sony RX100 III vs Canon G7X

Compared to Panasonic LX100

Sigma DP1 Merrill
Panasonic LX100
  • $849
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Focus peaking
  • Eye-level viewfinder

Compare Sigma DP1 Merrill vs Panasonic LX100

Sony RX100 III
Panasonic LX100
  • $748
  • 1 inch
  • Tiltable Screen
  • Internal flash
  • $598
  • 4/3
  • Less expensive
  • Larger sensor

Compare Sony RX100 III vs Panasonic LX100

Compared to Leica X2

Sigma DP1 Merrill
Leica X2
  • $849
  • APS-C
  • Less expensive
  • More dots on screen
  • $1499
  • APS-C
  • More telephoto lens reach
  • Longer stills battery life

Compare Sigma DP1 Merrill vs Leica X2

Sony RX100 III
Leica X2
  • $748
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
  • $1499
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Sony RX100 III vs Leica X2

Compare Other Cameras?