• 1/2.35 inch 27.3mm2
  • 8.0 megapixels
  • 36.00mm - 180.00mm (35mm eq.)
  • APS-C 357.3mm2
  • 20.1 megapixels
  • ISO 100 - 16,000

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Differences

Olympus 840 advantages over Sony A3000

  • Less expensive
    $250 vs $400 (MSRP)
    Save money for lenses or accessories
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Thinner
    24 mm vs 84 mm
    Thinner

Sony A3000 advantages over Olympus 840

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1/2.35 inch
    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
  • Bigger pixels
    ~ 4.25 vs 1.86 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Newer
    11 years vs 17 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    20.1 vs 8.0 megapixels
    Higher resolution photos
  • Longer exposure
    30 vs 4 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    3.5 fps vs 1.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    11 vs 6 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    16000 vs 1600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • HDMI out
    Neither provide
    Use HDMI output to monitor or review video
  • 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

Buy From

Your purchases support this site

Review Excerpt

  • Absolutely incredible value; Includes a stabilized kit lens; More versatile than a fixed-lens bridge camera; Comfortable body with good ergonomics; Great image quality; Good autofocus performance; Decent battery life.

  • Feels a bit plasticky; Slow burst shooting with limited buffer; Sluggish to power on or switch modes; Low-res EVF and LCD monitor; Can't review images using EVF; No video output; Weak flash; Battery charges in-camera.

The Competition

Compared to Sony DSC-W150

Olympus 840
Sony DSC-W150
  • $173
  • 1/2.35 inch
  • Larger sensor
  • More telephoto lens reach
  • $163
  • 1/2.5 inch
  • Eye-level viewfinder
  • Manual focus
Sony A3000
Sony DSC-W150
  • $500
  • APS-C
  • Focus peaking
  • Larger sensor
  • $163
  • 1/2.5 inch
  • Less expensive
  • In-Camera Image Stabilization

Compared to Pentax V20

Olympus 840
Pentax V20
  • $173
  • 1/2.35 inch
  • In-Camera Image Stabilization
  • $203
  • 1/2.35 inch
  • Manual focus
  • Faster JPEG shooting
Sony A3000
Pentax V20
  • $500
  • APS-C
  • Focus peaking
  • Larger sensor
  • $203
  • 1/2.35 inch
  • Less expensive
  • Thinner

Compared to Olympus FE-370

Olympus 840
Olympus FE-370
  • $173
  • 1/2.35 inch
  • $136
  • 1/2.35 inch
  • Less expensive
  • Higher extended ISO
Sony A3000
Olympus FE-370
  • $500
  • APS-C
  • Focus peaking
  • Larger sensor
  • $136
  • 1/2.35 inch
  • Less expensive
  • In-Camera Image Stabilization

Compared to Pentax K-01

Olympus 840
Pentax K-01
  • $173
  • 1/2.35 inch
  • Less expensive
  • Thinner
  • $359
  • APS-C
  • Focus peaking
  • Larger sensor
Sony A3000
Pentax K-01
  • $500
  • APS-C
  • Less expensive
  • Eye-level viewfinder
  • $359
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization

Compared to Sigma sd Quattro

Olympus 840
Sigma sd Quattro
  • $173
  • 1/2.35 inch
  • In-Camera Image Stabilization
  • Internal flash
  • $699
  • APS-C
  • Focus peaking
  • Larger sensor
Sony A3000
Sigma sd Quattro
  • $500
  • APS-C
  • Lens selection
  • In-camera panoramas
  • $699
  • APS-C
  • On-sensor phase detect
  • HDMI out
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