• APS-C 332.3mm2
  • 18.0 megapixels
  • ISO 100 - 6400
  • 4/3 224.9mm2
  • 16.0 megapixels
  • ISO 200 - 25,600

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Differences

Canon T3i advantages over Panasonic GM1

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Less expensive
    $600 vs $750 (MSRP)
    Save money for lenses or accessories
  • 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
  • Higher effective ISO
    793 vs 660 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 440 vs 230 shots
    Capture more photos
  • More telephoto lens reach
    216 mm vs 64 mm
    Capture objects farther away with the kit lens
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/200 vs 1/50 sec
    Reduce the effect of ambient light in flash shots
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures

Panasonic GM1 advantages over Canon T3i

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Fast startup
    ~0.90 vs 1.5 sec
    Faster startup lets you catch the moment
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Thinner
    30 mm vs 79 mm
    Thinner
  • Lighter weight
    279g vs 1031g
    Lighter weight
  • Less shutter lag
    0.19 vs 0.28 sec
    Focus and take a photo quickly (wide angle)
  • Wider angle kit lens
    24 mm vs 29 mm
    Capture more of the scene with the included lens
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    9.9 fps vs 3.6 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    10.3 fps vs 3.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    7 vs 5 shots
    Larger buffer for RAW shots (burst mode)
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

Common Weaknesses

  • 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
  • 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
  • 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

Review Excerpt

  • Excellent image quality; Good grip; Full HD video recording; Swiveling LCD; Very fast autofocus; HDMI output.

  • Slow frame rate for sports shooting; Tendency to overexpose in bright sunlight; Live View AF is slow; No microfocus adjustment.

  • Large Four Thirds sensor is impressive for a camera this small; Shares sensor and processor of GX7; Excellent image quality with class-leading high ISO performance; Responsive all-around performer; AF system is fast and accurate; Easy to use and responsive touchscreen; Built-in Wi-Fi with remote control and sharing features; Lightweight and pocketable design makes it easy to carry everywhere.

  • Can be awkward to use with larger lenses; Rear dial is easy to accidentally press; Lacks a hot-shoe for EVF or external flash; Weak built-in flash; 1/50s flash sync; No 1080p60 video; No external headphone jack or mic input.

The Competition

Compared to Nikon D7000

Canon T3i
Nikon D7000
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $699
  • APS-C
  • Larger sensor
  • Fast startup
Panasonic GM1
Nikon D7000
  • $479
  • 4/3
  • Focus peaking
  • Less expensive
  • $699
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Pentax K-5

Canon T3i
Pentax K-5
  • $549
  • APS-C
  • Tilt-swivel screen
  • More telephoto lens reach
  • $800
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
Panasonic GM1
Pentax K-5
  • $479
  • 4/3
  • Focus peaking
  • Touchscreen
  • $800
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon T4i

Canon T3i
Canon T4i
  • $549
  • APS-C
  • $579
  • APS-C
  • Touchscreen
  • Fast startup
Panasonic GM1
Canon T4i
  • $479
  • 4/3
  • Focus peaking
  • Built-in Wi-Fi
  • $579
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Panasonic GM5

Canon T3i
Panasonic GM5
  • $549
  • APS-C
  • Less expensive
  • Tilt-swivel screen
  • $898
  • 4/3
  • Focus peaking
  • Touchscreen
Panasonic GM1
Panasonic GM5
  • $479
  • 4/3
  • Less expensive
  • Internal flash
  • $898
  • 4/3
  • Eye-level viewfinder
  • In-camera panoramas

Compared to Panasonic GF7

Canon T3i
Panasonic GF7
  • $549
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $590
  • 4/3
  • Focus peaking
  • Touchscreen
Panasonic GM1
Panasonic GF7
  • $479
  • 4/3
  • $590
  • 4/3
  • Less expensive
  • In-camera panoramas
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