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

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Differences

Sigma fp advantages over Olympus E-M1 Mark III

  • Less expensive
    $1599 vs $2499
    Save money for lenses or accessories
  • 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)
  • Thinner
    45 mm vs 68 mm
    Thinner
  • Lighter weight
    422g vs 580g
    Lighter weight
  • More dots on screen
    2100k vs 1037k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    24.6 vs 20.4 megapixels
    Higher resolution photos
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Olympus E-M1 Mark III advantages over Sigma fp

  • 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
  • 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
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Higher max flash sync
    1/250 vs 1/30 sec
    Reduce the effect of ambient light in flash shots
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/32000 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
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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 Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera

User reviews

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  • Body Only
  • Kit with 45mm f/2.8 lens
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Your purchases support this site

Buy the Olympus E-M1 Mark III
Body Only
  • Body Only
  • Kit with 12-100mm f/4 Lens
  • Kit with 12-40mm Lens
All E-M1 Mark III Deals

Review Excerpt

The Competition

Compared to Canon EOS RP

Sigma fp
Canon EOS RP
  • $1623
  • 35mm
  • Focus peaking
  • Less expensive
  • $949
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Canon EOS RP

Olympus E-M1 Mark III
Canon EOS RP
  • $1649
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $949
  • 35mm
  • Less expensive
  • Larger sensor

Compare Olympus E-M1 Mark III vs Canon EOS RP

Compared to Panasonic G95

Sigma fp
Panasonic G95
  • $1623
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $848
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Sigma fp vs Panasonic G95

Olympus E-M1 Mark III
Panasonic G95
  • $1649
  • 4/3
  • High resolution composite
  • On-sensor phase detect
  • $848
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Olympus E-M1 Mark III vs Panasonic G95

Compared to Sony A7C

Sigma fp
Sony A7C
  • $1623
  • 35mm
  • Thinner
  • More dots on screen
  • $1598
  • 35mm
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs Sony A7C

Olympus E-M1 Mark III
Sony A7C
  • $1649
  • 4/3
  • Lens selection
  • High resolution composite
  • $1598
  • 35mm
  • Less expensive
  • Larger sensor

Compare Olympus E-M1 Mark III vs Sony A7C

Compared to Sigma fp L

Sigma fp
Sigma fp L
  • $1623
  • 35mm
  • Bigger pixels
  • Higher max flash sync
  • $2499
  • 35mm
  • More pixels
  • Has anti-aliasing filter

Compare Sigma fp vs Sigma fp L

Olympus E-M1 Mark III
Sigma fp L
  • $1649
  • 4/3
  • Tilt-swivel screen
  • Eye-level viewfinder
  • $2499
  • 35mm
  • Larger sensor
  • Thinner

Compare Olympus E-M1 Mark III vs Sigma fp L

Compared to OM System OM-1

Sigma fp
OM System OM-1
  • $1623
  • 35mm
  • Larger sensor
  • Bigger pixels
  • $2200
  • 4/3
  • Tilt-swivel screen
  • Eye-level viewfinder

Compare Sigma fp vs OM System OM-1

Olympus E-M1 Mark III
OM System OM-1
  • $1649
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen

Compare Olympus E-M1 Mark III vs OM System OM-1

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