Nikon D5100 vs Sony Alpha 7S

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      Specifications

      General Nikon D5100 Sony Alpha 7S
      BrandNikonSony
      ModelD5100Alpha 7S
      Predecessor ModelNikon D5000
      Successor ModelNikon D5200 Sony Alpha 7S II
      MSRP$2499
      Camera TypeInterchangeable LensInterchangeable Lens
      Body TypeDSLRMirrorless
      Video Capture
      Sensor Nikon D5100 Sony Alpha 7S
      Sensor TypeCMOSCMOS
      Sensor FormatDX
      Sensor SizeAPS-CFull Frame
      Sensor Dimensions23.6 x 15.6 mm35.8 x 23.9 mm
      Total Pixels16.9 Megapixel12.4 Megapixel
      Effective Pixels16.2 Megapixel12.2 Megapixel
      Low Pass Filter
      Native ISO Range100 - 6,400100 - 409,600
      Boosted ISO Range100 - 25,600
      Photo Nikon D5100 Sony Alpha 7S
      ProcessorEXPEED 2BIONZ X
      Max Image Resolution4928 x 32644240 x 2832
      Other Resolutions3696 x 2448, 2464 x 16324240 x 2384, 2768 x 1848, 2768 x 1560, 2128 x 1416, 2128 x 1200, 1376 x 920, 1376 x 776
      Image Aspect Ratios3:23:2, 16:9
      Image File FormatJPEG, RAW
      JPEG Quality LevelsFine, Normal, BasicExtra fine, fine, standard
      Bit Depth14-Bit14-Bit
      Timelapse RecordingWith downloadable app
      WB Bracketing3 frames in either blue/amber or magenta/green axis
      Active D-LightingCan be selected from:
      On
      Focus Nikon D5100 Sony Alpha 7S
      Focusing SystemContrast-detection AF
      Autofocus ModesMulti-area
      Center
      Selective single-point
      Tracking
      Single
      Continuous
      Face Detection
      Live View      		Multi-area
      Center
      Selective single-point
      Single
      Continuous
      Face Detection
      Live View
      Lens ServoSingle-Servo AF, Continuous-Servo AF, Manual FocusContinuous-Servo AF, Direct Manual Focus, Manual Focus, Single-Servo AF
      AF Detection Range-1 to +19 EV-4 to +20 EV
      Number of Focus Points1125
      Number of Cross-type Focus Points1
      Touch-to-Focus
      Live View Autofocus
      Animal Eye Detection
      Vehicle Tracking Mode
      Insect Tracking Mode
      Contrast Detection for Autofocus
      Phase Detection for Autofocus
      Focusing ScreenType B BriteView Clear Matte Mark VII screen
      Optics Nikon D5100 Sony Alpha 7S
      Lens MountNikon FSony E
      Crop Factor1.5x1x
      Image Stabilization
      Digital Image Stabilization
      Reflex MirrorQuick-return type
      Screen Nikon D5100 Sony Alpha 7S
      Screen TypeFully ArticulatedTilting
      Screen TechnologyTFT LCDTFT-LCD
      Touch Screen
      Selfie & Vlogger Friendly LCD Screen
      Screen Size3.0"3.0"
      Screen Resolution921k dot1,230k dot
      Top LCD Screen
      Live View
      Live Composition
      Viewfinder Nikon D5100 Sony Alpha 7S
      ViewfinderOptical (pentamirror)Electronic
      Viewfinder Coverage95%100%
      Viewfinder Magnification0.78x0.71x
      Viewfinder Magnification (35mm equivalent)0.52x0.71x
      Viewfinder Resolution2,359k dot
      Viewfinder Eyepoint27 mm
      Diopter Adjustment-1.7 to +0.7-4 to +3
      Shutter Nikon D5100 Sony Alpha 7S
      Shutter TypeElectronically controlled vertical-travel 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 Shooting4.0 fps5.0 fps
      Mirror Lock Up for image sensor cleaning
      Continuous Shooting Resolution/fps/bufferUp to 5 fps at 12.2 MP for up to 200 Frames
      Up to 2.5 fps at 12.2 MP for up to 200 Frames
      Flash Nikon D5100 Sony Alpha 7S
      Built-in Flash
      Flash ModesAuto
      On
      Off
      Red-eye
      Slow sync
      Rear curtain
      Flash Range12.00 m at ISO 100
      Max Flash Sync Speed1/200 sec1/250 sec
      Flash Compensation-3 to +1 EV (1/3, 1/2 EV Steps)-3 to +3 EV (1/3, 1/2 EV Steps)
      External Flash Connectivity
      External Flash SystemAuto aperture: Available with SB-910/SB-900/SB-800 and CPU lens
      Distance priority manual: Available with SB-910, SB-900 and SB-700
      i-TTL Balanced fill-flash, standard i-TTL flash for digital SLR
      Non-TTL auto: Supported flash units include SB-910, SB-900, SB-800, SB-80DX, SB-28DX, SB-28, SB-27, and SB-22S
      External Flash ConnectionHot ShoeHot Shoe, Proprietary
      Exposure Nikon D5100 Sony Alpha 7S
      Exposure Metering ModesMulti
      Center-weighted
      Spot      		Multi
      Center-weighted
      Spot
      Exposure ModesAperture Priority, Auto, Manual, Program, Shutter Priority
      Metering Range0 to +20 EV+3 to +20 EV
      Exposure Compensation±5 EV (1/3 EV, 1/2 EV increments)±5 EV (1/3 EV, 1/2 EV increments)
      Exposure Bracketing ±2 EV (3 shots at 1/3 EV, 1/2 EV increments) ±5 EV (3, 5 shots at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV, 2 EV increments)
      Exposure LockAuto Exposure Lock (AEL) button, Locked when shutter button is pressed halfway (Can be disabled from the Menu)
      DXO Nikon D5100 Sony Alpha 7S
      DxO Low Light ISO11833702
      DxO Color Depth23.523.9
      DxO Dynamic Range13.613.2
      DxO Overall Score8087
      Video Nikon D5100 Sony Alpha 7S
      Movie File FormatMOV
      Video FormatsMPEG-4MPEG-4, AVCHD, XAVC
      Max Video Resolution1920 x 10803840 x 2160
      Webcam Functionality
      Unlimited Video Recording
      Recording Limit30 min
      Terminals Nikon D5100 Sony Alpha 7S
      USB SpeedUSB 2.0 (480 Mbit/sec)USB 2.0 (480 Mbit/sec)
      HDMI Output Mini Type C Micro
      SpeakerMonoMono
      Built-in MicrophoneMonoStereo
      Microphone Input
      Headphone Output
      Flash Sync Port
      Connectivity Nikon D5100 Sony Alpha 7S
      Built-in GPS
      Built-In Wi-Fi via Eye-Fi
      Built-In Bluetooth
      NFC
      Remote Control Optional ML-L3 wired
      Environmental Nikon D5100 Sony Alpha 7S
      Environmental Sealing
      Operating Temperature32 to 104°F / 0 to 40°C
      Physical Nikon D5100 Sony Alpha 7S
      Dimensions128 x 97 x 79 mm (5.04 x 3.82 x 3.11")127 x 94 x 48 mm (5 x 3.7 x 1.89")
      Weight (inc. batteries)560 g (1.23 lb / 19.75 oz)489 g (1.08 lb / 17.25 oz)
      Box Dimensions (LxWxH)12.9 x 6.8 x 5.2"9 x 6.2 x 6.15"
      Package Weight2.55 lb
      Power and Storage Nikon D5100 Sony Alpha 7S
      Battery PackEN-EL14NP-FW50
      Battery Life660 shots360 shots
      Internal Storage
      External StorageSingle Slot: SD/SDHC/SDXCSingle Slot: SD/SDHC/SDXC/Memory Stick Duo Hybrid (UHS-I)
      Other Nikon D5100 Sony Alpha 7S
      Self Timer 2, 5, 10 or 20 sec 2 or 10 sec; continuous 3 or 5 exposures
      Orientation Sensor
      Electronic Level Gauge
      Sensor Cleaning/Dust Reduction SystemImage sensor cleaning


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