• APS-C 369.0mm2
  • 14.8 megapixels
  • ISO 100 - 6400
  • 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 25,600

Buy From

Differences

Sigma SD1 Merrill advantages over Sony A99 II

  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Sony A99 II advantages over Sigma SD1 Merrill

  • Lens selection
    Good vs Limited
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    35mm vs APS-C
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs No
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Fast startup
    ~1.20 vs 4.5 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
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More cross-type AF points
    15 vs 1
    Cross-type AF points improve autofocus performance
  • Newer
    8 years vs 13 years old
    Newer cameras often support more advanced features
  • 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
    1229k vs 460k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Less shutter lag
    0.11 vs 0.38 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.78x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    42.4 vs 14.8 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • More AF points
    79 vs 11
    More AF points improve autofocus
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    10.5 fps vs 4.1 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    61 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in GPS
    Neither provide
    Geotag your photos

User reviews

Buy From

Your purchases support this site

Buy the Sigma SD1 Merrill

Review Excerpt

  • Superb image quality at low, moderate ISOs; Improved high ISO performance; Fast continuous shooting speeds; Very impressive hybrid autofocus; High-quality 4K UHD video; Rugged camera body.

  • Multi-selector joystick can be awkward to use; No EVF live view at fastest burst rate; Buffer clearing is slow with no UHS-II support; 4K UHD video isn't as full-featured as E-mount counterparts.

The Competition

Compared to Canon 50D

Sigma SD1 Merrill
Canon 50D
  • $8492
  • APS-C
  • Doesn't require an AA filter
  • Wider angle kit lens
  • $1000
  • APS-C
  • Lens selection
  • Less expensive
Sony A99 II
Canon 50D
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
  • $1000
  • APS-C
  • Lens selection
  • Fast startup

Compared to Nikon D300S

Sigma SD1 Merrill
Nikon D300S
  • $8492
  • APS-C
  • More pixels
  • Doesn't require an AA filter
  • $1697
  • APS-C
  • Lens selection
  • Fast startup
Sony A99 II
Nikon D300S
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
  • $1697
  • APS-C
  • Lens selection
  • Less expensive

Compared to Nikon D500

Sigma SD1 Merrill
Nikon D500
  • $8492
  • APS-C
  • Bigger pixels
  • Internal flash
  • $1598
  • APS-C
  • Lens selection
  • Shoot 4K video
Sony A99 II
Nikon D500
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
  • $1598
  • APS-C
  • Lens selection
  • Less expensive

Compared to Canon 5D Mark IV

Sigma SD1 Merrill
Canon 5D Mark IV
  • $8492
  • APS-C
  • Internal flash
  • Doesn't require an AA filter
  • $2249
  • 35mm
  • Lens selection
  • Larger sensor
Sony A99 II
Canon 5D Mark IV
  • $3198
  • 35mm
  • Focus peaking
  • Tilt-swivel screen
  • $2249
  • 35mm
  • Lens selection
  • Bigger pixels

Compared to Nikon D850

Sigma SD1 Merrill
Nikon D850
  • $8492
  • APS-C
  • Internal flash
  • Doesn't require an AA filter
  • $2597
  • 35mm
  • Lens selection
  • Focus peaking
Sony A99 II
Nikon D850
  • $3198
  • 35mm
  • Tilt-swivel screen
  • In-Camera Image Stabilization
  • $2597
  • 35mm
  • Lens selection
  • Less expensive
Compare Other Cameras?