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

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Differences

Olympus E-PL3 advantages over Pentax K-3 III

  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Thinner
    37 mm vs 73 mm
    Thinner
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Pentax K-3 III advantages over Olympus E-PL3

  • 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
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • 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 300 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 13 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 153k pixels
    More detail on the screen lets you judge focus and composition
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    25.7 vs 12.3 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
  • Faster JPEG shooting
    12.0 fps vs 5.3 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    30 vs 9 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

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Review Excerpt

The Competition

Compared to Olympus E-P3

Olympus E-PL3
Olympus E-P3
  • $700
  • 4/3
  • Less expensive
  • Tiltable Screen
  • $561
  • 4/3
  • Fast startup
  • Internal flash
Pentax K-3 III
Olympus E-P3
  • $1847
  • APS-C
  • Focus peaking
  • Larger sensor
  • $561
  • 4/3
  • Internal flash
  • Thinner

Compared to Olympus E-PM1

Olympus E-PL3
Olympus E-PM1
  • $700
  • 4/3
  • Tiltable Screen
  • $500
  • 4/3
  • Less expensive
Pentax K-3 III
Olympus E-PM1
  • $1847
  • APS-C
  • Focus peaking
  • Larger sensor
  • $500
  • 4/3
  • Thinner
  • Longer exposure

Compared to Panasonic GF5

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

Compared to Pentax KP

Olympus E-PL3
Pentax KP
  • $700
  • 4/3
  • Thinner
  • HDMI out
  • $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

Olympus E-PL3
Canon 90D
  • $700
  • 4/3
  • In-Camera Image Stabilization
  • Bigger pixels
  • $1099
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
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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