• 1/2.33 inch 28.2mm2
  • 12.1 megapixels
  • 26.00mm - 676.00mm (35mm eq.)
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 16,000

Buy From

Differences

Pentax X90 advantages over Sony A58

  • Less expensive
    $400 vs $600 (MSRP)
    Save money for lenses or accessories

Sony A58 advantages over Pentax X90

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1/2.33 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.31 vs 1.53 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Fast startup
    ~1.90 vs 2.9 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 700 vs 255 shots
    Capture more photos
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Thinner
    77 mm vs 109 mm
    Thinner
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    461k vs 230k dots
    Can mean greater resolution or a brighter screen
  • 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
  • Less shutter lag
    0.13 vs 0.65 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    20.1 vs 12.1 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
    4.9 fps vs 1.1 fps
    Faster JPEG shooting (burst mode)
  • Higher extended ISO
    16000 vs 6400 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
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • 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

Buy the Pentax X90

Your purchases support this site

Buy the Sony A58
Kit with 18-55mm Lens
All A58 Deals

Review Excerpt

  • Improved 20.1-megapixel resolution; Impressive image quality, especially for its price; Fast and decisive autofocus (in most conditions); Very good battery life; Good video quality (Full HD 1080p, though it doesn't support 60p frame rate).

  • Plastic lens mount; Slower burst mode speeds and shallower buffer than A57; LCD no longer fully articulating; Mediocre kit lens; Electronic instead of an optical viewfinder may be a turnoff for some.

  • Read our Sony A58 Review

The Competition

Compared to Nikon P90

Pentax X90
Nikon P90
  • $400
  • 1/2.33 inch
  • Longer stills battery life
  • HDMI out
  • $400
  • 1/2.33 inch
  • Tiltable Screen
  • Longer exposure

Compare Pentax X90 vs Nikon P90

Sony A58
Nikon P90
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $400
  • 1/2.33 inch
  • Less expensive
  • Bigger JPEG buffer

Compare Sony A58 vs Nikon P90

Compared to Pentax X70

Pentax X90
Pentax X70
  • $400
  • 1/2.33 inch
  • Longer stills battery life
  • HDMI out
  • $400
  • 1/2.33 inch
  • Tiltable Screen
  • Faster JPEG shooting

Compare Pentax X90 vs Pentax X70

Sony A58
Pentax X70
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $400
  • 1/2.33 inch
  • Less expensive
  • Faster JPEG shooting

Compare Sony A58 vs Pentax X70

Compared to Nikon P100

Pentax X90
Nikon P100
  • $400
  • 1/2.33 inch
  • More pixels
  • Bigger JPEG buffer
  • $400
  • 1/2.3 inch
  • Tiltable Screen
  • Manual focus

Compare Pentax X90 vs Nikon P100

Sony A58
Nikon P100
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $400
  • 1/2.3 inch
  • Less expensive
  • Shoots 60p video

Compare Sony A58 vs Nikon P100

Compared to Pentax K-5 IIs

Pentax X90
Pentax K-5 IIs
  • $400
  • 1/2.33 inch
  • Less expensive
  • Lighter weight
  • $497
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Pentax X90 vs Pentax K-5 IIs

Sony A58
Pentax K-5 IIs
  • $598
  • APS-C
  • Less expensive
  • Focus peaking
  • $497
  • APS-C
  • Lens selection
  • Fast startup

Compare Sony A58 vs Pentax K-5 IIs

Compared to Canon T5i

Pentax X90
Canon T5i
  • $400
  • 1/2.33 inch
  • In-Camera Image Stabilization
  • $539
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compare Pentax X90 vs Canon T5i

Sony A58
Canon T5i
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $539
  • APS-C
  • Lens selection
  • Tilt-swivel screen

Compare Sony A58 vs Canon T5i

Compare Other Cameras?