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What is the sensor size of the Sony A99?

The Sony Alpha SLT-A99 is a digital camera that has a full frame sensor at its core. This imager measures 35.8mm in width and 23.8mm in height, so that the total imaging area of the sensor amounts to 852 mm2.

The A99 provides an image resolution of 24 megapixels, based on 6 000 horizontal pixels and 4 000 vertical pixels.

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Sensor size comparison with a film slide

The sensor diagonal measures 43mm, which gives rise to a format factor (or crop factor) of 1.0. Therefore, the Sony A99 is a full-frame camera, as its sensor size corresponds to that of a traditional 35mm film slide or negative.

Sony A99 and Credit Card sensor measures
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Sensor specs and performance

The table below compares the sensor specs of the Sony A99 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 A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
2.
 
Canon R6 Full Frame 20.0 5472 36484k/60p24.214.3339490
3.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
4.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
5.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
6.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
7.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
8.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
9.
 
Sony A77 APS-C 24.0 6000 40001080/60p24.013.280178
10.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
11.
 
Sony A900 Full Frame 24.4 6048 4032none23.712.3143179
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Further information on the sensor in the Sony A99 and the camera's operation can be found in the camera manual.

In the United States, the A99 was initially launched in September 2012 at a price of $2,799.

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Camera to camera comparisons

In case you are interested in seeing how this camera compares to another one, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications Summary
    Camera Model Sony A99
    Camera Type Digital single lens reflex
    Camera Lens Sony A mount lenses
    Launch Date September 2012
    Launch Price USD 2 799
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 35.8 x 23.8 mm
    Sensor Area 852 mm2
    Sensor Diagonal 43 mm
    Crop Factor 1.0x
    Sensor Resolution 24 Megapixels
    Image Resolution 6 000 x 4 000 pixels
    Pixel Pitch 5.96 μm
    Pixel Density 2.82 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 1080/60p Video
    ISO Setting 100 - 25 600 ISO
    ISO Boost 50 - 25 600 ISO
    Image Processor BIONZ X
    DXO Sensor Quality (score) 89
    DXO Color Depth (bits) 25.0
    DXO Dynamic Range (EV) 14.0
    DXO Low Light (ISO) 1555
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.71x
    Viewfinder Resolution 2359k dots
    Top-Level Screen Control Panel
    LCD Framing Live View
    LCD Size 3.0 inch
    LCD Resolution 1229k dots
    LCD Attachment Fully flexible screen
    V-logging Friendliness Front-flip possible
    Touch Input No touchscreen
    Shooting Specs
    Focus System Phase-detect AF
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/8000s
    Continuous Shooting 6 shutter flaps/s
    Shutter Life Expectancy200 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Image StabilizationIn-body stabilization
    Fill Flash no On-Board Flash
    Storage Medium MS or SDXC cards
    Single or Dual Card Slots Dual card slots
    UHS card support UHS-I
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 2.0
    HDMI Port mini HDMI
    Microphone Port External MIC port
    Headphone Socket Headphone port
    Wifi Support no Wifi
    Geotagging GPS built-in
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type Sony NP-FM500H power pack
    Battery Life (CIPA)500 shots per charge
    Body Dimensions 147 x 111 x 78 mm
    (5.8 x 4.4 x 3.1 in)
    Camera Weight 812 g (28.6 oz)

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