Sony Alpha SLT-A55 vs Sony Alpha SLT-A99

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      Specifications

      General Sony Alpha SLT-A55 Sony Alpha SLT-A99
      BrandSonySony
      ModelAlpha SLT-A55Alpha SLT-A99
      Predecessor ModelSony Alpha DSLR-A900
      Successor ModelSony Alpha SLT-A57 Sony Alpha SLT-A99 II
      MSRP$2,800/£2,480 body only
      Camera TypeInterchangeable LensInterchangeable Lens
      Body TypeSLTSLT
      Video Capture
      Sensor Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Sensor TypeCMOSCMOS
      Sensor SizeAPS-CFull Frame
      Sensor Dimensions23.5 x 15.6 mm35.8 x 23.8 mm
      Total Pixels16.7 Megapixel24.7 Megapixel
      Effective Pixels16.2 Megapixel24.3 Megapixel
      Low Pass Filter
      Native ISO Range100 - 12,800100 - 25,600
      Boosted ISO Range100 - 25,600
      Photo Sony Alpha SLT-A55 Sony Alpha SLT-A99
      ProcessorBIONZBIONZ
      Max Image Resolution4912 x 32646000 x 4000
      Other Resolutions3568 x 2368, 3568 x 2368, 2448 x 1624, 2448 x 13766000 x 3376, 3936 x 2624, 3936 x 2216, 2640 x 1760, 2640 x 1488
      Image Aspect Ratios3:2, 16:93:2, 16:9
      Image File FormatJPEG, RAW
      JPEG Quality LevelsFine, NormalExtra Fine, Fine, Standard
      Bit Depth14-Bit
      Color SpacesRGB, Adobe RGBsRGB, Adobe RGB
      Timelapse Recording
      WB BracketingLo 10 mired or Hi 20 mired 3 frames, H/L selectable
      Focus Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Autofocus ModesMulti-area
      Selective single-point
      Single
      Continuous
      Face Detection
      Live View      		Multi-area
      Selective single-point
      Tracking
      Single
      Continuous
      Face Detection
      Live View
      Lens ServoSingle-Servo AF, Continuous-Servo AFContinuous-Servo AF, Manual Focus, Single-Servo AF
      Number of Focus Points1519
      Number of Cross-type Focus Points311
      Touch-to-Focus
      Live View Autofocus
      Animal Eye Detection
      Vehicle Tracking Mode
      Insect Tracking Mode
      Contrast Detection for Autofocus
      Phase Detection for Autofocus
      Optics Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Lens MountSony ASony A
      Crop Factor1.5x1x
      Image StabilizationSensor ShiftSensor Shift
      Digital Image Stabilization
      Screen Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Screen TypeFully ArticulatedFully Articulated
      Screen TechnologyTFT Xtra Fine color LCD
      Touch Screen
      Tilt&Flip Screen
      Selfie & Vlogger Friendly LCD Screen
      Screen Size3.0"3.0"
      Screen Resolution921k dot1,229k dot
      Top LCD Screen
      Live View
      Live Composition
      Viewfinder Sony Alpha SLT-A55 Sony Alpha SLT-A99
      ViewfinderElectronicElectronic
      Viewfinder Coverage100%100%
      Viewfinder Magnification1.10x0.71x
      Viewfinder Magnification (35mm equivalent)0.73x0.71x
      Viewfinder Resolution1,150k dot2,359k dot
      Diopter Adjustment-4 to +4-4 to +3
      Shutter Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Shutter TypeElectronically controlled Vertical-traverse Focal-planeElectronically controlled Vertical-traverse Focal-plane
      Min Shutter Speed30 sec30 sec
      Max Shutter Speed (Mechanical or 1st Curtain)1/4000 sec1/8000 sec
      Max Continuous Shooting10.0 fps6.0 fps
      Flash Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Built-in Flash
      Flash ModesAuto
      On
      Off
      Red-Eye
      Slow Sync
      High Speed Sync
      Rear Curtain
      Fill-in
      Wireless      		Auto
      On
      Off
      Red-Eye
      Slow Sync
      High Speed Sync
      Rear Curtain
      Fill-in
      Wireless
      Flash Range10.00 m (@ ISO 100)
      Max Flash Sync Speed1/160 sec1/250 sec
      Flash Bracketing3 exposures in 0.3/0.7 EV steps
      External Flash Connectivity
      External Flash ConnectionHot Shoe
      Exposure Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Exposure Metering ModesMulti
      Center-weighted
      Spot      		Multi
      Center-weighted
      Spot
      Exposure Compensation±2 EV (1/3 EV increments)±5 EV (1/3 EV, 1/2 EV increments)
      Exposure Bracketing (3 shots at 1/3 EV, 2/3 EV increments) (3, 5 shots at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV increments)
      Exposure Lock (AE Lock button) with AE lock button (AE also locked when focus is locked in a multi-segment metering mode).
      DXO Sony Alpha SLT-A55 Sony Alpha SLT-A99
      DxO Low Light ISO8161555
      DxO Color Depth23.025.0
      DxO Dynamic Range12.414.0
      DxO Overall Score7389
      Video Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Video FormatsMPEG-4, AVCHD, H.264MPEG-4, AVCHD, H.264
      Max Video Resolution1920 x 10801920 x 1080
      Unlimited Video Recording
      Recording Limit30 min30 min
      Terminals Sony Alpha SLT-A55 Sony Alpha SLT-A99
      USB SpeedUSB 2.0 (480 Mbit/sec)USB 2.0 (480 Mbit/sec)
      HDMI Output Mini Type C Mini Type C
      SpeakerMono
      Built-in MicrophoneStereoStereo
      Microphone Input
      Headphone Output
      Flash Sync Port
      Connectivity Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Built-in GPS
      Built-In Wi-Fi Eye-Fi is possible
      Built-In Bluetooth
      Remote Control Optional Wired or Wireless (Optional)
      Environmental Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Environmental Sealing
      Physical Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Dimensions124 x 92 x 85 mm (4.88 x 3.62 x 3.35")147 x 111 x 78 mm (5.79 x 4.37 x 3.07")
      Weight (inc. batteries)500 g (1.10 lb / 17.64 oz)812 g (1.79 lb / 28.64 oz)
      Box Dimensions (LxWxH)10.7 x 6.9 x 6"
      Package Weight3.4 lb
      Power and Storage Sony Alpha SLT-A55 Sony Alpha SLT-A99
      Battery PackNP-FW50NP-FM500H
      Battery Life380 shots500 shots
      Internal Storage
      External StorageSingle Slot: SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG DuoSingle Slot: SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
      Other Sony Alpha SLT-A55 Sony Alpha SLT-A99
      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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