• 4/3 224.9mm2
  • 12.1 megapixels
  • ISO 160 - 6400
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 1,600,000

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Differences

Panasonic GF5 advantages over Pentax K-3 III

  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    36 mm vs 73 mm
    Thinner
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Pentax K-3 III advantages over Panasonic GF5

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 4/3
    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
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Longer stills battery life
    More info 800 vs 330 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
  • Newer
    4 years vs 12 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Higher-res screen
    540k vs 307k pixels
    More detail on the screen lets you judge focus and composition
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    25.7 vs 12.1 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    12.0 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    30 vs 5 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    1600000 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • 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
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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 Panasonic GF5

Your purchases support this site

Buy the Pentax K-3 III

Review Excerpt

  • Small body pairs nicely with compact, retractable Power Zoom lens. Extremely fast autofocus. Worthwhile improvements in image quality. Touchscreen overlays can now be hidden.

  • LCD panel is prone to fingerprint smudges. Weak flash, and no hot shoe. Modest burst performance, and very limited buffer for raw shooting. Noise levels and dynamic range still lag competition.

The Competition

Compared to Olympus E-PL3

Panasonic GF5
Olympus E-PL3
  • $450
  • 4/3
  • Touchscreen
  • Fast startup
  • $700
  • 4/3
  • In-Camera Image Stabilization
  • Tiltable Screen
Pentax K-3 III
Olympus E-PL3
  • $1847
  • APS-C
  • Focus peaking
  • Larger sensor
  • $700
  • 4/3
  • Tiltable Screen
  • Thinner

Compared to Olympus E-PM1

Panasonic GF5
Olympus E-PM1
  • $450
  • 4/3
  • Touchscreen
  • Higher effective ISO
  • $500
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
Pentax K-3 III
Olympus E-PM1
  • $1847
  • APS-C
  • Focus peaking
  • Larger sensor
  • $500
  • 4/3
  • Thinner
  • Longer exposure

Compared to Panasonic GF3X

Panasonic GF5
Panasonic GF3X
  • $450
  • 4/3
  • Higher effective ISO
  • More dynamic range
  • $750
  • 4/3
Pentax K-3 III
Panasonic GF3X
  • $1847
  • APS-C
  • Focus peaking
  • Larger sensor
  • $750
  • 4/3
  • Internal flash
  • Thinner

Compared to Pentax KP

Panasonic GF5
Pentax KP
  • $450
  • 4/3
  • Touchscreen
  • Thinner
  • $999
  • APS-C
  • Focus peaking
  • Larger sensor
Pentax K-3 III
Pentax KP
  • $1847
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Less expensive
  • Tiltable Screen

Compared to Canon 90D

Panasonic GF5
Canon 90D
  • $450
  • 4/3
  • Bigger pixels
  • Thinner
  • $1099
  • APS-C
  • Larger sensor
  • Tilt-swivel screen
Pentax K-3 III
Canon 90D
  • $1847
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1099
  • APS-C
  • Less expensive
  • Tilt-swivel screen
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