• APS-C 369.0mm2
  • 14.8 megapixels
  • 75.00mm (35mm eq.)
  • 1/1.7 inch 43.3mm2
  • 12.4 megapixels
  • ISO 100 - 12,800

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Differences

Sigma DP3 Merrill advantages over Pentax Q-S1

  • Larger sensor
    APS-C vs 1/1.7 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.00 vs 1.90 microns
    Better low-light and dynamic range (all else equal)
  • More dots on screen
    922k vs 460k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    14.8 vs 12.4 megapixels
    Higher resolution photos
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Pentax Q-S1 advantages over Sigma DP3 Merrill

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Longer stills battery life
    More info 250 vs 97 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    34 mm vs 80 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
    203g vs 400g
    Lighter weight
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    5.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    12800 vs 6400 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
  • 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

  • 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
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • 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
  • 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

User reviews

Buy From

Review Excerpt

The Competition

Compared to Nikon S1

Sigma DP3 Merrill
Nikon S1
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $199
  • 1 inch
  • Less expensive
  • On-sensor phase detect
Pentax Q-S1
Nikon S1
  • $350
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $199
  • 1 inch
  • Larger sensor
  • Bigger pixels

Compared to Pentax Q7

Sigma DP3 Merrill
Pentax Q7
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $195
  • 1/1.7 inch
  • Less expensive
  • Focus peaking
Pentax Q-S1
Pentax Q7
  • $350
  • 1/1.7 inch
  • $195
  • 1/1.7 inch

Compared to Samsung NX Mini

Sigma DP3 Merrill
Samsung NX Mini
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $529
  • 1 inch
  • Less expensive
  • Touchscreen
Pentax Q-S1
Samsung NX Mini
  • $350
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $529
  • 1 inch
  • Larger sensor
  • Bigger pixels

Compared to Nikon J4

Sigma DP3 Merrill
Nikon J4
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $405
  • 1 inch
  • Less expensive
  • Touchscreen
Pentax Q-S1
Nikon J4
  • $350
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $405
  • 1 inch
  • Larger sensor
  • Bigger pixels

Compared to Nikon S2

Sigma DP3 Merrill
Nikon S2
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $399
  • 1 inch
  • In-camera panoramas
  • On-sensor phase detect
Pentax Q-S1
Nikon S2
  • $350
  • 1/1.7 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $399
  • 1 inch
  • Larger sensor
  • Bigger pixels
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