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What is the crop factor of the Sony RX100 IV?

The Sony Cyber-shot DSC-RX100 IV is equipped with an one-inch sensor, whose diagonal measures 15.9mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 2.7.

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 2.7, the sensor in the Sony RX100 IV is smaller than the receptor area of a 35mm film slide or negative. As a result, the lens that is attached to the Sony RX100 IV will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 19mm lens on the Sony RX100 IV will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (19mm * 2.7 = 50mm).

Sony RX100 IV and Credit Card sensor measures

Sensor specs and performance

The table below compares the sensor specs of the Sony RX100 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 RX100 IV 1-inch 20.0 5472 36484K/30p22.812.659170
2.
 
Canon G7 X 1-inch 20.0 5472 36481080/60p23.012.755671
3.
 
Panasonic FZ1000 1-inch 20.0 5472 36484K/30p22.111.751764
4.
 
Sony RX100 VII 1-inch 20.0 5472 36484K/30p21.812.441863
5.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
6.
 
Sony RX100 V 1-inch 20.0 5472 36484K/30p22.812.458670
7.
 
Sony A5000 APS-C 19.8 5456 36321080/60i23.813.0108979
8.
 
Sony A5100 APS-C 24.0 6000 40001080/60p23.812.7134780
9.
 
Sony A6000 APS-C 24.0 6000 40001080/60p24.113.1134782
10.
 
Sony RX100 III 1-inch 20.0 5472 36481080/60p22.412.349567
11.
 
Sony RX100 II 1-inch 20.0 5472 36481080/60p22.512.448367
Note: DXO values in italics represent estimates based on sensor size and age.
Further information on the sensor in the Sony RX100 IV and the camera's operation can be found in the camera manual.

In the United States, the RX100 IV was initially launched in June 2015 at a price of $999.

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Check RX100 IV offers at
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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. 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 RX100 IV
    Camera Type Fixed lens compact camera
    Camera Lens 24-70mm f/1.8-2.8
    Launch Date June 2015
    Launch Price USD 999
    Sensor Specs
    Sensor Technology BSI-CMOS
    Sensor Format 1" Sensor
    Sensor Size 13.2 x 8.8 mm
    Sensor Area 116 mm2
    Sensor Diagonal 15.9 mm
    Crop Factor 2.7x
    Sensor Resolution 20 Megapixels
    Image Resolution 5 472 x 3 648 pixels
    Pixel Pitch 2.41 μm
    Pixel Density 17.18 MP/cm2
    Moiré control Anti-Alias filter
    Movie Capability 4K/30p Video
    ISO Setting 125 - 12 800 ISO
    ISO Boost 80 - 25 600 ISO
    Image Processor BIONZ X
    DXO Sensor Quality (score) 70
    DXO Color Depth (bits) 22.8
    DXO Dynamic Range (EV) 12.6
    DXO Low Light (ISO) 591
    Screen Specs
    Viewfinder Type Electronic viewfinder
    Viewfinder Field of View 100%
    Viewfinder Magnification 0.59x
    Viewfinder Resolution 2359k dots
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 3.0 inch
    LCD Resolution 1228k dots
    LCD Attachment Tilting screen
    V-logging Friendliness Front-flip possible
    Touch Input No touchscreen
    Shooting Specs
    Focus System Contrast-detect AF
    Manual Focusing AidFocus Peaking
    Maximum Shutter Speed 1/2000s
    Continuous Shooting 16 shutter flaps/s
    Silent ShootingElectronic Shutter
    Time Lapse Photographyno Intervalometer
    Fill Flash Built-in Flash
    Storage Medium MS or SDXC cards
    Single or Dual Card Slots Single card slot
    UHS card support UHS-I
    Connectivity Specs
    External Flash no Hotshoe
    USB Connector USB 2.0
    HDMI Port micro HDMI
    Wifi Support Wifi built-in
    Near-Field Communication NFC built-in
    Body Specs
    Battery Type NP-BX1 power pack
    Battery Life (CIPA)280 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 102 x 58 x 41 mm
    (4.0 x 2.3 x 1.6 in)
    Camera Weight 298 g (10.5 oz)

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