What is the crop factor of the Nikon P7800?

The Nikon Coolpix P7800 is equipped with a 1/1.7-inch sensor, whose diagonal measures 9.5mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 4.5.

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.

Sensor size comparison with a film slide

With a crop factor of 4.5, the sensor in the Nikon P7800 is smaller than the receptor area of a 35mm film slide or negative. As a result, the lens that is attached to the Nikon P7800 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 11mm lens on the Nikon P7800 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (11mm * 4.5 = 50mm).

Sensor specs and performance

The table below compares the sensor specs of the Nikon P7800 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 P7800	1/1.7	12.0	4000	3000	1080/30p	21.2	11.7	200	54
2.		Canon G12	1/1.7	10.0	3648	2736	720/24p	20.4	11.2	161	47
3.		Canon G15	1/1.7	12.0	4000	3000	1080/24p	19.9	11.5	165	46
4.		Canon G16	1/1.7	12.0	4000	3000	1080/60p	21.0	11.7	230	54
5.		Fujifilm X10	2/3	12.0	4000	3000	1080/30p	20.5	11.3	245	50
6.		Fujifilm X20	2/3	12.0	4000	3000	1080/60p	20.1	10.9	-462	46
7.		Fujifilm X30	2/3	12.0	4000	3000	1080/60p	20.4	11.2	-312	49
8.		Olympus XZ-2	1/1.7	11.8	3968	2976	1080/30p	20.4	11.3	216	49
9.		Panasonic LF1	1/1.7	12.0	4000	3000	1080/60i	20.8	11.6	211	52
10.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
11.		Pentax MX-1	1/1.7	12.0	4000	3000	1080/30p	20.4	11.3	208	49
Note: DXO values in italics represent estimates based on sensor size and age.

In the United States, the P7800 was initially launched in September 2013 at a price of $549.

Check P7800 offers at
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Camera to camera comparisons

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