• APS-C 369.0mm2
  • 14.8 megapixels
  • ISO 100 - 6400
  • APS-C 332.3mm2
  • 24.1 megapixels
  • ISO 100 - 6400

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Differences

Sigma SD1 Merrill advantages over Canon T7

  • Larger sensor
    APS-C vs APS-C
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.00 vs 3.72 microns
    Better low-light and dynamic range (all else equal)
  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • More viewfinder magnification
    0.63x vs 0.50x
    Get a bigger view of the scene through the eye-level viewfinder
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré
  • Wider angle kit lens
    26 mm vs 29 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    4.1 fps vs 3.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light

Canon T7 advantages over Sigma SD1 Merrill

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • 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
    88 mm vs 75 mm
    Capture objects farther away with the kit lens
  • Newer
    4 years vs 11 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
    922k 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
  • More pixels
    24.1 vs 14.8 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Bigger JPEG buffer
    150 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Higher extended ISO
    12800 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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • 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 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
  • 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

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Buy the Sigma SD1 Merrill

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Buy the Canon T7

Review Excerpt

The Competition

Compared to Canon 50D

Sigma SD1 Merrill
Canon 50D
  • $1799
  • APS-C
  • Doesn't require an AA filter
  • Wider angle kit lens
  • $1000
  • APS-C
  • Lens selection
  • Less expensive
Canon T7
Canon 50D
  • $469
  • APS-C
  • Built-in Wi-Fi
  • NFC
  • $1000
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Nikon D300S

Sigma SD1 Merrill
Nikon D300S
  • $1799
  • APS-C
  • More pixels
  • Doesn't require an AA filter
  • $1671
  • APS-C
  • Lens selection
  • Fast startup
Canon T7
Nikon D300S
  • $469
  • APS-C
  • Less expensive
  • Built-in Wi-Fi
  • $1671
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony DSLR-A550

Sigma SD1 Merrill
Sony DSLR-A550
  • $1799
  • APS-C
  • Pentaprism viewfinder
  • More viewfinder magnification
  • $859
  • APS-C
  • Lens selection
  • Less expensive
Canon T7
Sony DSLR-A550
  • $469
  • APS-C
  • Lens selection
  • Built-in Wi-Fi
  • $859
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compared to Canon T7i

Sigma SD1 Merrill
Canon T7i
  • $1799
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $700
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Canon T7
Canon T7i
  • $469
  • APS-C
  • Less expensive
  • $700
  • APS-C
  • Tilt-swivel screen
  • Touchscreen

Compared to Canon SL2

Sigma SD1 Merrill
Canon SL2
  • $1799
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $549
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Canon T7
Canon SL2
  • $469
  • APS-C
  • Less expensive
  • Bigger JPEG buffer
  • $549
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
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