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Sony Alpha DSLR-A900 - Pros/Cons

Conclusion - Pros

  • Class-leading resolutionv (as long as your lenses are good enough)
  • incredibly solid build quality, environmental sealing
  • Intuitive operation and uncluttered control and menu system
  • Excellent out of camera JPEG results with superb tonality, dynamic range, color
  • Excellent raw dynamic range gives lots of headroom
  • Almost 100% reliable metering and exposure
  • Very fast and responsive body - remarkable burst mode (5fps RAW+JPEG, 24.6 MP)
  • In-body image stabilization that works well (around 2 stop advantage)
  • Wide range of image parameters and custom 'Creative Styles'
  • Dynamic Range Optimizer Advanced works well
  • Superb screen and attractive menu system
  • Excellent 'Quick Navi' control system
  • AF micro adjustment (per lens)
  • User-selectable noise reduction (though see cons, below)
  • One of the best (biggest, brightest) optical viewfinders on the market, 100% frame coverage
  • Excellent handling and ergonomics
  • Excellent battery life and percentage battery status display
  • HDMI output
  • Three custom modes on main mode dial
  • Remote control included
  • Fast USB transfer and card writing (with a fast card)



Conclusion - Cons

  • Noise reduction settings applied to raw as well as JPEG files - cannot be 'turned off for raw but left on for JPEGs' (as is normal practice)
  • Relatively high levels of noise at anything over ISO 400 (ISO 6400 is of very, very limited use)
  • Destructive noise reduction on high ISO JPEGs removes too much detail
  • JPEGs a little soft by default (some loss of detail due to NR visible even at ISO 200) - you really need to shoot raw (and use ACR or similar) to get the best out of the sensor
  • Default color settings can produce red clipping (very saturated)
  • Top panel LCD very limited compared to all competitors
  • Less customizable than most competitors (though a lot less confusing for it)
  • No live view
  • No in-camera vignetting control
  • Intelligent preview of limited use in the real world (cannot check focus, for example)
  • Focus speed not up to other cameras in this class (though it is very accurate)
  • AF zone only covers a small part of the frame (not unique to this camera, of course)
  • No intelligent use of multiple cards (you have to switch manually)
  • Supplied raw processing software doesn't get the most out of the files (and is slow)
  • Proprietary MS Duo slot (we'd much prefer an SD slot), though I should be clear: two card slots is a positive