A potelyt.com – Photography & Imaging Resources
ad

When you use links on apotelyt.com to buy products,
the site may earn a commission.

What is the crop factor of the Sony A9?

The Sony Alpha A9 is equipped with a full frame sensor, whose diagonal measures 42.8mm. 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.

camera

Sensor size comparison with a film slide

With a crop factor of 1.0, the sensor in the Sony A9 has a similar size as a 35mm film slide or negative. As a result, a lens that is attached to the Sony A9 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 A9 and Credit Card sensor measures
ad

Sensor specs and performance

The table below compares the sensor specs of the Sony A9 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.

scroll hint
Sensor Characteristics
#   Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
2.
 
Nikon Z6 Full Frame 24.3 6048 40244K/30p25.314.3329995
3.
 
Sony A7R V Full Frame 60.2 9504 63368k/24p26.514.83187100
4.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
5.
 
Sony A9 II Full Frame 24.0 6000 40004K/30p25.014.0343493
6.
 
Sony A7 III Full Frame 24.0 6000 40004K/30p25.014.7373096
7.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
8.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
9.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
10.
 
Sony A7 II Full Frame 24.0 6000 40001080/60p24.913.6244990
11.
 
Sony A99 Full Frame 24.0 6000 40001080/60p25.014.0155589
padding
Further information on the sensor in the Sony A9 and the camera's operation can be found in the camera manual.

In the United States, the A9 was initially launched in April 2017 at a price of $4,499.

logo
Check A9 offers at
ebay.com

Camera to camera comparisons

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

~
    loader
    ad

    Specifications Summary
    Camera Model Sony A9
    Camera Type Mirrorless system camera
    Camera Lens Sony E mount lenses
    Launch Date April 2017
    Launch Price USD 4 499
    Sensor Specs
    Sensor Technology Stacked BSI-CMOS
    Sensor Format Full Frame Sensor
    Sensor Size 35.6 x 23.8 mm
    Sensor Area 847 mm2
    Sensor Diagonal 42.8 mm
    Crop Factor 1.0x
    Sensor Resolution 24 Megapixels
    Image Resolution 6 000 x 4 000 pixels
    Pixel Pitch 5.94 μm
    Pixel Density 2.83 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 4K/30p Video
    ISO Setting 100 - 51 200 ISO
    ISO Boost 50 - 204 800 ISO
    Image Processor BIONZ X
    DXO Sensor Quality (score) 92
    DXO Color Depth (bits) 24.9
    DXO Dynamic Range (EV) 13.3
    DXO Low Light (ISO) 3517
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.78x
    Viewfinder Resolution 3686k 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 20 shutter flaps/s
    Shutter Life Expectancy500 000 actuations
    Silent ShootingElectronic 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 Single UHS-II
    Connectivity Specs
    External Flash Hotshoe
    Studio Flash PC Sync socket
    USB Connector USB 2.0
    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)650 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 127 x 96 x 63 mm
    (5.0 x 3.8 x 2.5 in)
    Camera Weight 673 g (23.7 oz)

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

    You are here Home  »  Sony A9 Review  »  Sony A9 Crop Factor