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What is the crop factor of the Sony A900?

The Sony Alpha A900 is equipped with a full frame sensor, whose diagonal measures 43.2mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.0.

The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.

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Sensor size comparison with a film slide

With a crop factor of 1.0, the sensor in the Sony A900 has a similar size as a 35mm film slide or negative. As a result, a lens that is attached to the Sony A900 will offer the same angle of view and provide the same depth of field as a lens of the same focal length and aperture on a film camera.

Sony A900 and Credit Card sensor measures
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Sensor specs and performance

The table below compares the sensor specs of the Sony A900 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 A900 Full Frame 24.4 6048 4032none23.712.3143179
2.
 
Canon 5D Mark III Full Frame 22.1 5760 38401080/30p24.011.7229381
3.
 
Canon 5D Mark II Full Frame 21.0 5616 37441080/30p23.711.9181579
4.
 
Nikon D700 Full Frame 12.1 4256 2832none23.512.2230380
5.
 
Panasonic S1 Full Frame 24.0 6000 40004K/60p25.214.5333395
6.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
7.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
8.
 
Sony A99 II Full Frame 42.2 7952 53044K/30p25.413.4231792
9.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
10.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
11.
 
Sony A850 Full Frame 24.4 6048 4032none23.812.2141579
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Further information on the sensor in the Sony A900 and the camera's operation can be found in the camera manual.

In the United States, the A900 was initially launched in September 2008 at a price of $2,999.

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Check A900 offers at
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Camera to camera comparisons

In case you would like to check on the differences and similarities with other camera models, 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 A900
    Camera Type Digital single lens reflex
    Camera Lens Sony A mount lenses
    Launch Date September 2008
    Launch Price USD 2 999
    Sensor Specs
    Sensor Technology 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 24.4 Megapixels
    Image Resolution 6 048 x 4 032 pixels
    Pixel Pitch 5.94 μm
    Pixel Density 2.83 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability no Video
    ISO Setting 200 - 3 200 ISO
    ISO Boost 100 - 6 400 ISO
    Image Processor BIONZ
    DXO Sensor Quality (score) 79
    DXO Color Depth (bits) 23.7
    DXO Dynamic Range (EV) 12.3
    DXO Low Light (ISO) 1431
    Screen Specs
    Viewfinder Type Optical viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.74x
    Top-Level Screen Control Panel
    LCD Size 3.0 inch
    LCD Resolution 922k dots
    LCD Attachment Fixed screen
    Touch Input No touchscreen
    Shooting Specs
    Focus System Phase-detect AF
    Manual Focusing Aidno Peaking Feature
    Maximum Shutter Speed 1/8000s
    Continuous Shooting 5 shutter flaps/s
    Shutter Life Expectancy150 000 actuations
    Silent Shootingno E-Shutter
    Time Lapse Photographyno Intervalometer
    Image StabilizationIn-body stabilization
    Fill Flash no On-Board Flash
    Storage Medium CF or MS cards
    Single or Dual Card Slots Dual card slots
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 2.0
    HDMI Port mini HDMI
    Wifi Support no Wifi
    Body Specs
    Environmental SealingWeathersealed body
    Battery Type Sony NP-FM500H power pack
    Battery Life (CIPA)880 shots per charge
    Body Dimensions 156 x 117 x 82 mm
    (6.1 x 4.6 x 3.2 in)
    Camera Weight 895 g (31.6 oz)

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