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What is the sensor size of the Sony A7R IV?

The Sony Alpha A7R IV is a digital camera that has a full frame sensor at its core. This imager measures 35.7mm in width and 23.8mm in height, so that the total imaging area of the sensor amounts to 850 mm2.

The A7R IV provides an image resolution of 60.2 megapixels, based on 9 504 horizontal pixels and 6 336 vertical pixels.

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Sensor size comparison with a film slide

The sensor diagonal measures 42.9mm, which gives rise to a format factor (or crop factor) of 1.0. Therefore, the Sony A7R IV is a full-frame camera, as its sensor size corresponds to that of a traditional 35mm film slide or negative.

Sony A7R IV and Credit Card sensor measures
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Sensor specs and performance

The table below compares the sensor specs of the Sony A7R IV to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.

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Sensor Characteristics
#   Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
2.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
3.
 
Sony A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
4.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
5.
 
Sony A7R IVA Full Frame 60.2 9504 63364K/30p26.014.8334499
6.
 
Sony A7S III Full Frame 12.0 4240 28324K/120p23.713.9252086
7.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
8.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
9.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
10.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
11.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
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Further information on the sensor in the Sony A7R IV and the camera's operation can be found in the camera manual.

In the United States, the A7R IV was initially launched in July 2019 at a price of $3,499.

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Camera to camera comparisons

If you would like to see a side-by-side review with another camera, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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    Specifications Summary
    Camera Model Sony A7R IV
    Camera Type Mirrorless system camera
    Camera Lens Sony E mount lenses
    Launch Date July 2019
    Launch Price USD 3 499
    Sensor Specs
    Sensor Technology BSI-CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 35.7 x 23.8 mm
    Sensor Area 850 mm2
    Sensor Diagonal 42.9 mm
    Crop Factor 1.0x
    Sensor Resolution 60.2 Megapixels
    Image Resolution 9 504 x 6 336 pixels
    Pixel Pitch 3.76 μm
    Pixel Density 7.09 MP/cm2
    Moiré control no AA filter
    Movie Capability 4K/30p Video
    ISO Setting 100 - 32 000 ISO
    ISO Boost 50 - 102 400 ISO
    Image Processor BIONZ X
    DXO Sensor Quality (score) 99
    DXO Color Depth (bits) 26.0
    DXO Dynamic Range (EV) 14.8
    DXO Low Light (ISO) 3344
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 5760k dots
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 3.0 inch
    LCD Resolution 1440k dots
    LCD Attachment Tilting screen
    V-logging Friendliness No front-flip
    Touch Input Touchscreen
    Shooting Specs
    Focus System On-Sensor Phase-detect
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/8000s
    Continuous Shooting 10 shutter flaps/s
    Shutter Life Expectancy500 000 actuations
    Silent ShootingElectronic Shutter
    Time Lapse PhotographyIntervalometer Built-in
    Image StabilizationIn-body stabilization
    Fill Flash no On-Board Flash
    Storage Medium SDXC cards
    Single or Dual Card Slots Dual card slots
    UHS card support Dual UHS-II
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 3.1
    HDMI Port micro HDMI
    Microphone Port External MIC port
    Headphone Socket Headphone port
    Wifi Support Wifi built-in
    Near-Field Communication NFC built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type Sony NP-FZ100 power pack
    Battery Life (CIPA)670 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 129 x 96 x 78 mm
    (5.1 x 3.8 x 3.1 in)
    Camera Weight 665 g (23.5 oz)

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