Sony Alpha DSLR-A900 vs Sony Alpha DSLR-A550

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      Specifications

      General Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      BrandSonySony
      ModelAlpha DSLR-A900Alpha DSLR-A550
      Predecessor ModelSony Alpha DSLR-A100
      Camera TypeInterchangeable LensInterchangeable Lens
      Body TypeDSLRDSLR
      Video Capture
      Sensor Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Sensor TypeCMOSCMOS
      Sensor SizeFull FrameAPS-C
      Sensor Dimensions35.9 x 24 mm23.4 x 15.6 mm
      Total Pixels25.7 Megapixel14.6 Megapixel
      Effective Pixels24.6 Megapixel14.2 Megapixel
      Low Pass Filter
      Native ISO Range100 - 6,400200 - 12,800
      Photo Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      ProcessorBIONZBIONZ
      Max Image Resolution6048 x 40324592 x 3056
      Other Resolutions4400 x 2936, 4400 x 2936, 3024 x 2016, 6048 x 3408, 4400 x 2472, 3024 x 1704, 3924 x 2656, 2896 x 1928, 1984 x 13204592 x 2576, 3344 x 2224, 3344 x 1872, 2288 x 1520, 2288 x 1280
      Image Aspect Ratios3:2, 16:93:2, 16:9
      Image File FormatJPEG, RAW
      JPEG Quality LevelsExtra Fine, Fine, StandardFine, Standard
      Bit Depth12-Bit
      Timelapse Recording
      White BalanceAuto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Kelvin temperature control (2500-9900k w/19-step Magenta/Green compensation), & Customized (3 repeatable customizations)
      WB Bracketing3 frames in either blue/amber or magenta/green axis
      Focus Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Autofocus ModesMulti-area
      Center
      Selective single-point
      Single
      Continuous      		Multi-area
      Selective single-point
      Single
      Continuous
      Face Detection
      Live View
      Lens ServoWide area, Center spot, & Individual point
      Number of Focus Points99
      Touch-to-Focus
      Live View Autofocus
      Animal Eye Detection
      Vehicle Tracking Mode
      Insect Tracking Mode
      Contrast Detection for Autofocus
      Phase Detection for Autofocus
      Focusing ScreenSpherical Acute Matte
      Optics Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Lens MountSony ASony A
      Crop Factor1x1.5x
      Image StabilizationSensor ShiftSensor Shift
      Digital Image Stabilization
      Screen Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Screen TypeFixedTilting
      Screen TechnologyTFT Xtra Fine color LCD
      Touch Screen
      Screen Size3.0"3.0"
      Screen Resolution922k dot922k dot
      Top LCD Screen
      Live View
      Live Composition
      Viewfinder Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      ViewfinderOptical (pentaprism)Optical (pentamirror)
      Viewfinder Coverage100%95%
      Viewfinder Magnification0.74x0.80x
      Viewfinder Magnification (35mm equivalent)0.74x0.53x
      Diopter Adjustment-3 to +1
      Shutter Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Shutter TypeElectronically controlled Vertical-traverse Carbon Fiber Focal-plane
      Min Shutter Speed30 sec30 sec
      Max Shutter Speed (Mechanical or 1st Curtain)1/8000 sec1/4000 sec
      Max Continuous Shooting5.0 fps7.0 fps
      Flash Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Built-in Flash
      Flash ModesAuto
      On
      Off
      Red-Eye
      Slow Sync
      Rear Curtain
      Fill-in
      Wireless      		Auto
      On
      Off
      Red-Eye
      Slow Sync
      High Speed Sync
      Rear Curtain
      Fill-in
      Wireless
      Flash Range12.00 m
      Max Flash Sync Speed1/250 sec1/160 sec
      External Flash Connectivity
      External Flash ConnectionProprietary Hot Shoe (compatible w/ Sony & Minolta flashes)
      Wireless off camera flash (with specific Sony flashes)
      PC Socket
      Exposure Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Exposure Metering ModesMulti
      Center-weighted
      Spot      		Multi
      Center-weighted
      Spot
      Exposure ModesAuto, Program, Aperture Priority, Shutter Priority, Manual (with EV indicator), Customized (3 repeatable customizations)
      Exposure Compensation±3 EV (1/3 EV increments)±2 EV (1/3 EV increments)
      Exposure Bracketing ±2 EV (3, 5 shots at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV increments) (3 shots at 1/3 EV, 2/3 EV increments)
      DXO Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      DxO Low Light ISO1431807
      DxO Color Depth23.721.9
      DxO Dynamic Range12.311.8
      DxO Overall Score7966
      Video Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Internal Recording ModesNo
      Interval Recording
      Terminals Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      USB SpeedUSB 2.0 (480 Mbit/sec)USB 2.0 (480 Mbit/sec)
      HDMI Output Mini Type C
      Built-in Microphone
      Microphone Input
      Headphone Output
      Flash Sync Port
      Connectivity Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Built-in GPS
      Built-In Wi-Fi
      Built-In Bluetooth
      Remote Control Wired or Wireless (Optional) Wired or Wireless (Optional)
      Environmental Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Environmental Sealing
      Physical Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Dimensions156 x 117 x 82 mm (6.14 x 4.61 x 3.23")137 x 104 x 84 mm (5.39 x 4.09 x 3.31")
      Weight (inc. batteries)895 g (1.97 lb / 31.57 oz)632 g (1.39 lb / 22.29 oz)
      Power and Storage Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Battery PackNP-FM500HNP-FM500H
      Battery Life880 shots480 shots
      Internal Storage
      External StorageCompact Flash (Type I or II), Memory Stick Duo / Pro DuoSingle Slot: SD/SDHC, Memory Stick Duo/Pro Duo/Pro-HG Duo
      Other Sony Alpha DSLR-A900 Sony Alpha DSLR-A550
      Self Timer 2 or 10 sec 2 or 10 sec
      Orientation Sensor
      Material of ConstructionMagnesium Alloy


      For a full review please go to the review page:

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