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What is the sensor size of the Sony A1?

The Sony A1 is a digital camera that has a full frame sensor at its core. This imager measures 35.9mm in width and 24.0mm in height, so that the total imaging area of the sensor amounts to 862 mm2.

The A1 provides an image resolution of 49.8 megapixels, based on 8 640 horizontal pixels and 5 760 vertical pixels.

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Sensor size comparison with a film slide

The sensor diagonal measures 43.2mm, which gives rise to a format factor (or crop factor) of 1.0. Therefore, the Sony A1 is a full-frame camera, as its sensor size corresponds to that of a traditional 35mm film slide or negative.

Sony A1 and Credit Card sensor measures
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Sensor specs and performance

The table below compares the sensor specs of the Sony A1 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 A1 Full Frame 49.8 8640 57608k/30p25.914.5316398
2.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
3.
 
Sony A7 IV Full Frame 32.7 7008 46724K/60p25.414.7337997
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 A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
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 A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
11.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
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Further information on the sensor in the Sony A1 and the camera's operation can be found in the camera manual.

In the United States, the A1 was initially launched in January 2021 at a price of $6,499.

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Camera to camera comparisons

If you would like to see a side-by-side review with another camera, just use the search menu below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications Summary
    Camera Model Sony A1
    Camera Type Mirrorless system camera
    Camera Lens Sony E mount lenses
    Launch Date January 2021
    Launch Price USD 6 499
    Sensor Specs
    Sensor Technology Stacked BSI-CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 35.9 x 24.0 mm
    Sensor Area 862 mm2
    Sensor Diagonal 43.2 mm
    Crop Factor 1.0x
    Sensor Resolution 49.8 Megapixels
    Image Resolution 8 640 x 5 760 pixels
    Pixel Pitch 4.16 μm
    Pixel Density 5.78 MP/cm2
    Moiré control no AA filter
    Movie Capability 8k/30p Video
    ISO Setting 100 - 32 000 ISO
    ISO Boost 50 - 102 400 ISO
    Image Processor Dual BIONZ XR
    DXO Sensor Quality (score) 98
    DXO Color Depth (bits) 25.9
    DXO Dynamic Range (EV) 14.5
    DXO Low Light (ISO) 3163
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.9x
    Viewfinder Resolution 9437k 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 CFexA or SDXC cards
    Single or Dual Card Slots Dual card slots
    UHS card support UHS-II
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 3.2
    HDMI Port full HDMI
    Microphone Port External MIC port
    Headphone Socket Headphone port
    Wifi Support Wifi built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type Sony NP-FZ100 power pack
    Battery Life (CIPA)530 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 129 x 97 x 81 mm
    (5.1 x 3.8 x 3.2 in)
    Camera Weight 737 g (26.0 oz)

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