What is the pixel pitch of the Nikon D7100?

The Nikon D7100 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 Nikon D7100 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 D7100 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).

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 Nikon D7100 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.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Nikon D7100	APS-C	24.0	6000	4000	1080/60p	24.2	13.7	1256	83
2.		Canon 70D	APS-C	20.0	5472	3648	1080/30p	22.5	11.6	926	68
3.		Nikon D500	APS-C	20.7	5568	3712	4K/30p	24.0	14.0	1324	83
4.		Nikon D600	Full Frame	24.2	6016	4016	1080/30p	25.1	14.2	2980	94
5.		Nikon D610	Full Frame	24.2	6016	4016	1080/30p	25.1	14.4	2925	94
6.		Nikon D750	Full Frame	24.2	6016	4016	1080/60p	24.8	14.5	2956	93
7.		Nikon D3300	APS-C	24.0	6000	4000	1080/60p	24.3	12.8	1385	82
8.		Nikon D7000	APS-C	16.1	4928	3264	1080/24p	23.5	13.9	1167	80
9.		Nikon D7200	APS-C	24.0	6000	4000	1080/60p	24.5	14.6	1333	87
10.		Nikon D7500	APS-C	20.7	5568	3712	4K/30p	24.3	14.0	1483	86
11.		Sony RX10	1-inch	20.0	5472	3648	1080/60p	22.9	12.6	474	69

Further information on the sensor in the Nikon D7100 and the camera's operation can be found in the camera manual.

In the United States, the D7100 was initially launched in February 2013 at a price of $1,199.

Check D7100 offers at
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Camera to camera comparisons

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