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What is the pixel pitch of the Ricoh GR III?

The Ricoh GR III provides 24 megapixels from an APS-C sensor. This pixel density gives rise to a size of the individual pixel of 3.91µm.

The pixel size or pixel pitch can be calculated by dividing the sensor area by the pixel count and then taking the square root. In particular, the sensor in the Ricoh GR III measures 23.5mm in width and 15.6mm in height, so that the total imaging area of the sensor amounts to 367 mm2. Moreover, the GR III has 6 000 horizontal pixels and 4 000 vertical pixels, for a total of 24 megapixels. Then, the size (height or width) of each individual pixel can be calculated as the square root of the ratio of the sensor area (367 mm2) to the MP count (24 000 000).

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Larger pixels provide advantages with respect to gathering light, particularly in low-light situations. Large pixels notably have a better signal to noise ratio, meaning that they can better differentiate between incoming photons and the noisy signals that the internal processes of the camera create. As a result, big pixels are particularly helpful to the photographer when shooting with high ISO settings.

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.
 
Leica C-LUX 1-inch 20.0 5472 36484K/30p22.112.348164
4.
 
Panasonic GX9 Four Thirds 20.2 5184 38884K/30p23.112.8116374
5.
 
Panasonic TZ200 1-inch 20.0 5472 36484K/30p22.012.244964
6.
 
Panasonic LX15 1-inch 20.0 5472 36484K/30p21.912.031562
7.
 
Panasonic TZ100 1-inch 20.0 5472 36484K/30p22.812.555970
8.
 
Ricoh GR IIIx APS-C 24.0 6000 40001080/60p24.213.8214685
9.
 
Ricoh GR II APS-C 16.1 4928 32641080/30p23.613.7107880
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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