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Sony Alpha A7R II

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Sony Alpha A7R III

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Sony Alpha A7S II

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Sony Alpha A9

Camera
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Type / Size MirrorlessMirrorlessMirrorlessMirrorless
Sensor 42 Megapixels CMOS *5-Axis Sensor-Shift image-stabilization.42 Megapixels CMOS *BSI CMOS Sensor with Built-in Phase-Detect AF. Pixel Shift shooting.12 Megapixels CMOS24 Megapixels CMOS *Exmor RS Ultra-High Speed Stacked CMOS Sensor with built-in Phase-Detect AF.
Sensor Area Full-Frame SensorFull-Frame SensorFull-Frame SensorFull-Frame Sensor
Sensor Size 43.3mm Diagonal (1X FLM)43.3mm Diagonal (1X FLM)43.3mm Diagonal (1X FLM)43.3mm Diagonal (1X FLM)
Sensor Aspect 3:2 Aspect-Ratio3:2 Aspect-Ratio3:2 Aspect-Ratio3:2 Aspect-Ratio
Anti-Alias Filter NoNoYesNo
Stabilization 5-Axis, 4.5-Stops5-Axis, 5.5-Stops5-Axis, 4.5-Stops5-Axis, 5-Stops
Dust-Reduction YesYesYesYes
Sensitivity ISO 100 - 25600 *Expanded range: 50-102400ISO 100 - 32000 *Expanded range: 50-102400ISO 100 - 102400 *Expanded range: 50-409600ISO 100 - 51200 *Expanded range: 50-204800
Shutter-Speed 1/8000 - 30s1/8000 - 30s1/8000 - 30s1/32000 - 30s
Lens / Mount Sony E MountSony E MountSony E Full-Frame MountSony E Mount
FLM / Crop Full-FrameFull-FrameFull-FrameFull-Frame
Minimum Focus
Zoom Mechanism
Manual Focus LensLensLensLens
Filter Diameter
Focus System 399-point Phase-Detect *399-Point Phase-Detect, 25-Point Contrast-Detect. Eye-Start AF.
Assist-Lamp
399-point Phase-Detect *425 Area Contrast-Detect AF. Tracking Eye-AF.
Assist-Lamp
169-point Phase-Detect *Eye-AF, Predictive Control, Tracking autofocus.
Assist-Lamp
693-point Phase-Detect *Motion and Eye Tracking AF-C. Focus Peeking.
Assist-Lamp
Viewfinder Type Built-in EVFBuilt-in EVFBuilt-in EVFBuilt-in EVF
Viewfinder Size 0.50" 2400K Pixels (0.78X) 100% Coverage0.50" 3600K Pixels (0.78X) 100% Coverage0.50" 2400K Pixels (0.78X) 100% Coverage0.50" 3600K Pixels (0.78X) 100% Coverage *Blackout Free Shooting. Color-Temperature Control, 5 steps.
Display Position TiltingTiltingTiltingTilting
Display Size 3" LCD 1200K Pixels 100% Coverage3" LCD 1400K Pixels 100% Coverage *Touchscreen3" LCD 1200K Pixels 100% Coverage3" LCD 1400K Pixels 100% Coverage *Touchscreen
Exposure Modes P, A, T, M, BP, A, T, M, BP, A, T, M, BP, A, T, M, B
Scene Modes 10Sweep Panorama, Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night, Handheld Twilight, Anti Motion Blur10Sweep Panorama, Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night Scene, Hand-held Twilight, Anti Motion Blur
Metering Multi-Segment, Center-Weighed, SpotMulti-Segment, Center-Weighed, Spot, Average, HighlightMulti-Segment, Center-Weighed, SpotMulti-Segment, Center-Weighed, Spot, Average, Highlight
Bracketing 9 Shots ±1 EV5 Shots ±3 EV5 Shots ±2/3 EV5 Shots ±3 EV
Exposure Compensation ±5 EV, 1/3 or 1/2 EV±5 EV, 1/3 or 1/2 EV±5 EV, 1/3 or 1/2 EV±5 EV, 1/3 or 1/2 EV
Flash Compensation ±3 EV, 1/3 or 1/2 EV±3 EV, 1/3 or 1/2 EV±3 EV, 1/3 or 1/2 EV±3 EV, 1/3 or 1/2 EV
White Balance Auto, Presets, CustomAuto, Presets, CustomAuto, Presets, CustomAuto, Presets, Custom
White Balance Tuning 2 Axis, 29 steps2 Axis, 29 steps2 Axis, 15 steps2 Axis, 29 steps
Continuous Drive 5 FPS, 24 JPEG, 23 RAW10 FPS, 76 JPEG, 76 RAW *8 FPS Live-View Drive.5 FPS, Unlimited JPEG20 FPS, 362 JPEG, 241 RAW *10 FPS Max with Mechanical Shutter.
Self Timer Yes *2s, 10s, 3-5 Shots @ 10sYes *2s, 10s, 3-5 Frames @ 2-10sYes *2s, 10sYes *2s, 5s, 10s with 1,3 or 5 frames.
Command Dials 3333
DOF Preview YesYesYesYes
Protection WeatherproofWeatherproofWeatherproofWeatherproof
Digital Level 2 Axis2 Axis2 Axis2 Axis
Tripod Mount YesYesYesYes
Remote Trigger Infrared, WiFiWired, WiFiInfrared, WiFiWired, WiFi
HDR NoYesYesNo
Multiple Exposures NoYesNoNo
Interval Timer YesYesNoNo
WiFi YesYesYesYes
Eye-Start Sensor YesYesYesYes
Image Formats JPEG RAWJPEG RAWJPEG RAWJPEG RAW
Flash Ports Hot-ShoeHot-Shoe Sync-PortHot-ShoeHot-Shoe Sync-Port
Built-In Flash NoNoNoNo
Flash Sync 1/250s1/250s1/250sUnknown
Video Capture 3840x2160 @ 30 FPS 16:9 *1920x1080 @ 60 FPS. Stereo output mini-jack.3840x2160 @ 30 FPS 16:9 *Stereo mini-jack headset output. Hybrid Log Gamma (HLG) video. 1920x1080 @ 120 FPS.3840x2160 @ 30 FPS 16:9 *1920x1080 @ 120 FPS. Headphone mini-jack. Audio level monitor. Optional S-Log3 Gamma.3840x2160 @ 30 FPS 16:9
Sound Input StereoStereoStereoStereo
GPS N / AN / AN / AN / A
Memory Secure Digital Extended Capacity, Memory Stick DuoSecure Digital Extended Capacity x 2, Memory Stick DuoSecure Digital Extended Capacity, Memory Stick DuoSecure Digital Extended Capacity x 2
Battery Lithium-IonLithium-IonLithium-IonLithium-Ion
Battery Life 290530310480
Introduced 2015-06-102017-10-252015-09-112017-04-21
Size 127 x 96 x 61mm (W x H x D)127 x 96 x 74mm (W x H x D)117 x 69 x 38mm (W x H x D)127 x 96 x 63mm (W x H x D)
Weight 625g657g627g673g
Legend Best Spec Above Average About Average Below Average Lowest Spec Uncompared NOTE: Comparison is based on usefulness, not on the number of settings.
Priority is given to the primary number in a specification.*Examples:
FPS for Continuous Drive
Maximum ISO for Sensitivity
Coverage for Viewfinder & Display