• 35mm 864.0mm2
  • 22.3 megapixels
  • ISO 100 - 25,600
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 100.00mm (35mm eq.)

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Differences

Canon 5D Mark III advantages over Canon G7X

  • Larger sensor
    35mm vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 6.25 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.50 vs 1.7 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    2,293 vs 556 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 950 vs 210 shots
    Capture more photos
  • 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
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Less shutter lag
    0.12 vs 0.20 sec
    Focus and take a photo quickly (wide angle)
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    63 vs 14 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    6.0 fps vs 1.2 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    18 vs 4 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/8000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    102400 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Canon G7X advantages over Canon 5D Mark III

  • 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
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • 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
    40 mm vs 76 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/200 sec
    Reduce the effect of ambient light in flash shots
  • Lighter weight
    302g vs 950g
    Lighter weight
  • Longer exposure
    250 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    6.6 fps vs 6.0 fps
    Faster JPEG shooting (burst mode)

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.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Canon 5D Mark III

Review Excerpt

  • Superb still and video image quality; Powerful, fast, and accurate AF system with loads of cross-type points, loads of configurability and great frame coverage; Rugged, weather-sealed body with great control layout and user-interface configurability.

  • Dynamic range is limited by noise in deep shadows; Somewhat heavy-handed noise suppression and sharpening at default settings. (Shooting RAW avoids both.); No AF illuminator.

  • Very compact body fits in a pants pocket; Zoom lens is both brighter and further-reaching than anything offered by its enthusiast compact rivals; Selfie-friendly tilting LCD monitor; Intuitive touch-screen interface; Very good image quality for its class; Wi-Fi connectivity gets photos on your phone

  • No electronic viewfinder; Soft corners at wide-angle; Flare issues and fringing shooting wide-open; Weak performance when shooting raw files; Tendency to underexpose in low light; Limited battery life

The Competition

Compared to Canon 6D

Canon 5D Mark III
Canon 6D
  • $2139
  • 35mm
  • More cross-type AF points
  • Less shutter lag
  • $1699
  • 35mm
  • Less expensive
  • Built-in Wi-Fi
Canon G7X
Canon 6D
  • $699
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $1699
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony RX100 III

Canon 5D Mark III
Sony RX100 III
  • $2139
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $748
  • 1 inch
  • Less expensive
  • Focus peaking
Canon G7X
Sony RX100 III
  • $699
  • 1 inch
  • Touchscreen
  • More telephoto lens reach
  • $748
  • 1 inch
  • Eye-level viewfinder
  • In-camera panoramas

Compared to Panasonic LX100

Canon 5D Mark III
Panasonic LX100
  • $2139
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $598
  • 4/3
  • Less expensive
  • Focus peaking
Canon G7X
Panasonic LX100
  • $699
  • 1 inch
  • Touchscreen
  • Tiltable Screen
  • $598
  • 4/3
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon 5D Mark IV

Canon 5D Mark III
Canon 5D Mark IV
  • $2139
  • 35mm
  • Less expensive
  • Bigger pixels
  • $2499
  • 35mm
  • Shoot 4K video
  • Touchscreen
Canon G7X
Canon 5D Mark IV
  • $699
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $2499
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony A850

Canon 5D Mark III
Sony A850
  • $2139
  • 35mm
  • Lens selection
  • Higher effective ISO
  • $2219
  • 35mm
  • In-Camera Image Stabilization
Canon G7X
Sony A850
  • $699
  • 1 inch
  • Focus peaking
  • Less expensive
  • $2219
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
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