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What is the crop factor of the Ricoh GR III?

The Ricoh GR III is equipped with an APS-C sensor, whose diagonal measures 28.2mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 1.5.

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 1.5, the sensor in the Ricoh GR III is smaller than the receptor area of a 35mm film slide or negative. As a result, the lens that is attached to the Ricoh GR III 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 33mm lens on the Ricoh GR III will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (33mm * 1.5 = 50mm).

Ricoh GR III and Credit Card sensor measures

Sensor specs and performance

The table below compares the sensor specs of the Ricoh GR III 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.
 
Ricoh GR III APS-C 24.0 6000 40001080/60p24.113.5189783
2.
 
Canon G7 X Mark III 1-inch 20.0 5472 36484K/30p22.212.458365
3.
 
Fujifilm X-S10 APS-C 26.0 6240 41604K/30p24.213.7205785
4.
 
Fujifilm XF10 APS-C 24.0 6000 40004K/15p24.013.4184483
5.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
6.
 
Panasonic ZS200 1-inch 20.0 5472 36484K/30p22.012.244964
7.
 
Ricoh GR IIIx APS-C 24.0 6000 40001080/60p24.213.8214685
8.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
9.
 
Ricoh GR APS-C 16.1 4928 32641080/30p23.613.597278
10.
 
Sony ZV-1 1-inch 20.0 5472 36484K/30p22.212.666966
11.
 
Sony RX100 VI 1-inch 20.0 5472 36484K/30p22.112.347864
Note: DXO values in italics represent estimates based on sensor size and age.
Further information on the sensor in the Ricoh GR III and the camera's operation can be found in the camera manual.

In the United States, the GR III was initially launched in February 2019 at a price of $899.

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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.

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    Specifications Summary
    Camera Model Ricoh GR III
    Camera Type Fixed lens compact camera
    Camera Lens 28mm f/2.8
    Launch Date February 2019
    Launch Price USD 899
    Sensor Specs
    Sensor Technology CMOS
    Sensor Format APS-C Sensor
    Sensor Size 23.5 x 15.6 mm
    Sensor Area 367 mm2
    Sensor Diagonal 28.2 mm
    Crop Factor 1.5x
    Sensor Resolution 24 Megapixels
    Image Resolution 6 000 x 4 000 pixels
    Pixel Pitch 3.91 μm
    Pixel Density 6.55 MP/cm2
    Moiré control no AA filter
    Movie Capability 1080/60p Video
    ISO Setting 100 - 102 400 ISO
    Image Processor GR Engine VI
    Screen Specs
    Viewfinder Type Viewfinder optional
    Top-Level Screen no Top Display
    LCD Framing Live View
    LCD Size 3.0 inch
    LCD Resolution 1037k dots
    LCD Attachment Fixed screen
    Touch Input Touchscreen
    Shooting Specs
    Focus System On-Sensor Phase-detect
    Manual Focusing Aidno Peaking Feature
    Maximum Shutter Speed 1/4000s
    Continuous Shooting 4 shutter flaps/s
    Silent Shootingno E-Shutter
    Time Lapse PhotographyIntervalometer Built-in
    Image StabilizationIn-body stabilization
    Fill Flash no On-Board Flash
    Storage Medium SDXC cards
    Single or Dual Card Slots Single card slot
    UHS card support UHS-I
    Connectivity Specs
    External Flash Hotshoe
    USB Connector USB 3.0
    HDMI Port no HDMI
    Wifi Support Wifi built-in
    Bluetooth Support Bluetooth built-in
    Body Specs
    Battery Type DB-110 power pack
    Battery Life (CIPA)200 shots per charge
    In-Camera Charging USB charging
    Body Dimensions 109 x 62 x 33 mm
    (4.3 x 2.4 x 1.3 in)
    Camera Weight 257 g (9.1 oz)

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