What is the pixel pitch of the Epson R-D1?

The Epson R-D1 provides 6 megapixels from an APS-C sensor. This pixel density gives rise to a size of the individual pixel of 7.85µm.

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 Epson R-D1 measures 23.7mm in width and 15.6mm in height, so that the total imaging area of the sensor amounts to 370 mm². Moreover, the R-D1 has 3 008 horizontal pixels and 2 000 vertical pixels, for a total of 6 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 (370 mm²) to the MP count (6 016 000).

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 Epson R-D1 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.		Epson R-D1	APS-C	6.0	3008	2000	none	21.1	10.4	564	55
2.		Canon Rebel	APS-C	6.3	3072	2048	none	21.0	10.8	544	55
3.		Leica CL	APS-C	24.1	6014	4014	4K/30p	24.0	13.3	1788	82
4.		Leica M10	Full Frame	23.8	5952	3992	none	24.4	13.2	2133	86
5.		Leica X-U Typ 113	APS-C	16.1	4928	3264	1080/30p	23.8	13.0	1614	80
6.		Leica X Vario	APS-C	16.1	4928	3272	1080/30p	23.4	12.7	1320	78
7.		Leica M9	Full Frame	18.1	5212	3472	none	22.5	11.7	884	69
8.		Nikon D40	APS-C	6.0	3008	2000	none	21.0	11.0	561	56
9.		Nikon D50	APS-C	6.0	3008	2000	none	20.9	10.8	560	55
10.		Nikon D70s	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
11.		Nikon D70	APS-C	6.0	3008	2000	none	20.4	10.3	529	50
Note: DXO values in italics represent estimates based on sensor size and age.

In the United States, the R-D1 was initially launched in March 2004 at a price of $2,999.

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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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