• 0.98 inch 285.7mm2
  • 4.6 megapixels
  • 28.00mm (35mm eq.)
  • APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 12,800

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Differences

Sigma DP1 advantages over Canon T4i

  • Bigger pixels
    ~ 7.84 vs 4.30 microns
    Better low-light and dynamic range (all else equal)
  • Thinner
    50 mm vs 78 mm
    Thinner

Canon T4i advantages over Sigma DP1

  • Larger sensor
    APS-C vs 0.98 inch
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~0.70 vs 3.9 sec
    Faster startup lets you catch the moment
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 440 vs 250 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • 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
    1040k vs 230k 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
    0.27 vs 1.53 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    18.0 vs 4.6 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Longer exposure
    30 vs 15 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    4.8 fps vs 3.8 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    19 vs 3 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 800 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
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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

  • 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
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • 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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Your purchases support this site

Buy the Sigma DP1

Your purchases support this site

Buy the Canon T4i
Body Only
  • Body Only
  • Kit with 18-135mm Lens
  • Kit with 18-55mm Lens
All T4i Deals

Review Excerpt

  • Excellent image quality; 9 cross-type AF points; Stereo microphones; Built-in touchscreen; Multi-shot modes.

  • Slow Live View and video autofocus; High ISO performance is unimproved; Below-average battery life; No dedicated AF illuminator.

  • Read our Canon T4i Review

The Competition

Compared to Canon T5i

Sigma DP1
Canon T5i
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $539
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compare Sigma DP1 vs Canon T5i

Canon T4i
Canon T5i
  • $579
  • APS-C
  • More telephoto lens reach
  • $539
  • APS-C
  • Less expensive
  • Lighter weight

Compare Canon T4i vs Canon T5i

Compared to Nikon D7000

Sigma DP1
Nikon D7000
  • $999
  • 0.98 inch
  • Less expensive
  • Bigger pixels
  • $699
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compare Sigma DP1 vs Nikon D7000

Canon T4i
Nikon D7000
  • $579
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $699
  • APS-C
  • Larger sensor
  • Fast startup

Compare Canon T4i vs Nikon D7000

Compared to Pentax K-5

Sigma DP1
Pentax K-5
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $800
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compare Sigma DP1 vs Pentax K-5

Canon T4i
Pentax K-5
  • $579
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization

Compare Canon T4i vs Pentax K-5

Compared to Canon T3i

Sigma DP1
Canon T3i
  • $999
  • 0.98 inch
  • Bigger pixels
  • Thinner
  • $549
  • APS-C
  • Larger sensor
  • Less expensive

Compare Sigma DP1 vs Canon T3i

Canon T4i
Canon T3i
  • $579
  • APS-C
  • Touchscreen
  • Fast startup
  • $549
  • APS-C

Compare Canon T4i vs Canon T3i

Compared to Pentax K-30

Sigma DP1
Pentax K-30
  • $999
  • 0.98 inch
  • Less expensive
  • Bigger pixels
  • $599
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Sigma DP1 vs Pentax K-30

Canon T4i
Pentax K-30
  • $579
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
  • $599
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Canon T4i vs Pentax K-30

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