• 35mm 858.0mm2
  • 24.6 megapixels
  • ISO 100 - 25,600
  • 4/3 226.2mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

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Differences

Sigma fp advantages over Olympus E-M10 IV

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 5.98 vs 3.36 microns
    Better low-light and dynamic range (all else equal)
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More dots on screen
    2100k vs 1037k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    24.6 vs 20.3 megapixels
    Higher resolution photos
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M10 IV advantages over Sigma fp

  • Less expensive
    $699 vs $1599
    Save money for lenses or accessories
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Higher max flash sync
    1/250 vs 1/30 sec
    Reduce the effect of ambient light in flash shots
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • 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
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

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
  • 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
  • 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

User reviews

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Your purchases support this site

Buy the Sigma fp
Body Only
  • Body Only
  • Kit with 45mm f/2.8 lens
All fp Deals

Your purchases support this site

Buy the Olympus E-M10 IV
Body Only
  • Body Only
  • Kit with 14-42mm Lens
All E-M10 IV Deals

Review Excerpt

The Competition

Compared to Canon EOS RP

Sigma fp
Canon EOS RP
  • $1699
  • 35mm
  • Focus peaking
  • Less expensive
  • $949
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Canon EOS RP

Olympus E-M10 IV
Canon EOS RP
  • $666
  • 4/3
  • Focus peaking
  • Less expensive
  • $949
  • 35mm
  • Larger sensor
  • Tilt-swivel screen

Compare Olympus E-M10 IV vs Canon EOS RP

Compared to Olympus E-M5 III

Sigma fp
Olympus E-M5 III
  • $1699
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $924
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Sigma fp vs Olympus E-M5 III

Olympus E-M10 IV
Olympus E-M5 III
  • $666
  • 4/3
  • Less expensive
  • Longer video battery life
  • $924
  • 4/3
  • Tilt-swivel screen
  • High resolution composite

Compare Olympus E-M10 IV vs Olympus E-M5 III

Compared to Panasonic G100

Sigma fp
Panasonic G100
  • $1699
  • 35mm
  • Larger sensor
  • In-Camera Image Stabilization
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Sigma fp vs Panasonic G100

Olympus E-M10 IV
Panasonic G100
  • $666
  • 4/3
  • In-Camera Image Stabilization
  • More telephoto lens reach
  • $599
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Olympus E-M10 IV vs Panasonic G100

Compared to Sony A7C

Sigma fp
Sony A7C
  • $1699
  • 35mm
  • Thinner
  • More dots on screen
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Sony A7C

Olympus E-M10 IV
Sony A7C
  • $666
  • 4/3
  • Lens selection
  • Less expensive
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Larger sensor

Compare Olympus E-M10 IV vs Sony A7C

Compared to Sigma fp L

Sigma fp
Sigma fp L
  • $1699
  • 35mm
  • Bigger pixels
  • Higher max flash sync
  • $2499
  • 35mm
  • More pixels
  • Has anti-aliasing filter

Compare Sigma fp vs Sigma fp L

Olympus E-M10 IV
Sigma fp L
  • $666
  • 4/3
  • Eye-level viewfinder
  • Tiltable Screen
  • $2499
  • 35mm
  • Larger sensor
  • External Mic Jack

Compare Olympus E-M10 IV vs Sigma fp L

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