Sony Alpha DSLR-A850 vs Sony Alpha DSLR-A550

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      Specifications

      General Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      BrandSonySony
      ModelAlpha DSLR-A850Alpha DSLR-A550
      Predecessor ModelSony Alpha DSLR-A100
      Camera TypeInterchangeable LensInterchangeable Lens
      Body TypeDSLRDSLR
      Video Capture
      Sensor Sony Alpha DSLR-A850 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 Range200 - 3,200200 - 12,800
      Boosted ISO Range200 - 6,400
      Photo Sony Alpha DSLR-A850 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
      JPEG Quality LevelsExtra Fine, Fine, StandardFine, Standard
      Timelapse Recording
      White BalanceAuto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Custom
      WB Bracketing3 frames in either blue/amber or magenta/green axis
      Focus Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      Autofocus ModesMulti-area
      Selective single-point
      Single
      Continuous      		Multi-area
      Selective single-point
      Single
      Continuous
      Face Detection
      Live View
      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 screenSpherical Acute Matte
      Optics Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      Lens MountSony ASony A
      Crop Factor1x1.5x
      Image StabilizationSensor ShiftSensor Shift
      Digital Image Stabilization
      Screen Sony Alpha DSLR-A850 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-A850 Sony Alpha DSLR-A550
      ViewfinderOptical (pentaprism)Optical (pentamirror)
      Viewfinder Coverage98%95%
      Viewfinder Magnification0.74x0.80x
      Viewfinder Magnification (35mm equivalent)0.74x0.53x
      Shutter Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      Min Shutter Speed30 sec30 sec
      Max Shutter Speed (Mechanical or 1st Curtain)1/8000 sec1/4000 sec
      Max Continuous Shooting3.0 fps7.0 fps
      Flash Sony Alpha DSLR-A850 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 SystemSony Alpha System Flash
      External Flash ConnectionYes
      Exposure Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      Exposure Metering ModesMulti
      Center-weighted
      Spot      		Multi
      Center-weighted
      Spot
      Exposure Compensation±3 EV (1/3 EV, 1/2 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-A850 Sony Alpha DSLR-A550
      DxO Low Light ISO1415807
      DxO Color Depth23.821.9
      DxO Dynamic Range12.211.8
      DxO Overall Score7966
      Terminals Sony Alpha DSLR-A850 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-A850 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-A850 Sony Alpha DSLR-A550
      Environmental Sealing
      Operating Temperature32 - 104°F (0 - 40°C)
      Storage Temperature32 - 104° F (0 - 40° C)
      Physical Sony Alpha DSLR-A850 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-A850 Sony Alpha DSLR-A550
      Battery PackNP-FM500HNP-FM500H
      Battery Life880 shots480 shots
      Internal Storage
      External StorageSlot1 : Compact Flash (Type I or II, UDMA)
      Slot 2: Memory Stick Duo/Pro Duo/Pro-HG Duo      		Single Slot: SD/SDHC, Memory Stick Duo/Pro Duo/Pro-HG Duo
      Other Sony Alpha DSLR-A850 Sony Alpha DSLR-A550
      Self Timer 2 or 10 sec 2 or 10 sec
      Orientation Sensor
      Material of ConstructionMagnesium Alloy


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