• APS-C 369.7mm2
  • 10.2 megapixels
  • ISO 100 - 3200
  • APS-C 369.7mm2
  • 14.6 megapixels
  • ISO 100 - 3200

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Differences

Sony DSLR-A330 advantages over Pentax K-7

  • Less expensive
    $649 vs $1300 (MSRP)
    Save money for lenses or accessories
  • Bigger pixels
    ~ 6.12 vs 5.07 microns
    Better low-light and dynamic range (all else equal)
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility

Pentax K-7 advantages over Sony DSLR-A330

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Longer stills battery life
    More info 740 vs 510 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • More cross-type AF points
    9 vs 1
    Cross-type AF points improve autofocus performance
  • Pentaprism viewfinder
    Pentaprism vs Pentamirror
    Much better viewfinder picture fidelity
  • More dots on screen
    921k vs 230k dots
    Can mean greater resolution or a brighter screen
  • More viewfinder magnification
    0.61x vs 0.49x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    14.6 vs 10.2 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    5.2 fps vs 2.4 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    6400 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • 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
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting 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

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Review Excerpt

The Competition

Compared to Pentax K200D

Sony DSLR-A330
Pentax K200D
  • $530
  • APS-C
  • Less expensive
  • Tiltable Screen
  • $800
  • APS-C
  • Lens selection
  • Top deck display
Pentax K-7
Pentax K200D
  • $1300
  • APS-C
  • Longer stills battery life
  • Pentaprism viewfinder
  • $800
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Sony DSLR-A230

Sony DSLR-A330
Sony DSLR-A230
  • $530
  • APS-C
  • Tiltable Screen
  • $549
  • APS-C
  • Less expensive
  • More viewfinder magnification
Pentax K-7
Sony DSLR-A230
  • $1300
  • APS-C
  • Lens selection
  • Longer stills battery life
  • $549
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Sony DSLR-A380

Sony DSLR-A330
Sony DSLR-A380
  • $530
  • APS-C
  • Less expensive
  • Bigger pixels
  • $849
  • APS-C
  • Higher effective ISO
  • More pixels
Pentax K-7
Sony DSLR-A380
  • $1300
  • APS-C
  • Lens selection
  • Longer stills battery life
  • $849
  • APS-C
  • Less expensive
  • Tiltable Screen

Compared to Nikon D3000

Sony DSLR-A330
Nikon D3000
  • $530
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen
  • $450
  • APS-C
  • Lens selection
  • More viewfinder magnification
Pentax K-7
Nikon D3000
  • $1300
  • APS-C
  • In-Camera Image Stabilization
  • Longer stills battery life
  • $450
  • APS-C
  • Less expensive
  • Bigger pixels

Compared to Canon T2i

Sony DSLR-A330
Canon T2i
  • $530
  • APS-C
  • Less expensive
  • Larger sensor
  • $692
  • APS-C
  • Lens selection
  • Fast startup
Pentax K-7
Canon T2i
  • $1300
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $692
  • APS-C
  • Less expensive
  • Fast startup
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