How about a high pixel digital camera?

As one of the standards to measure the quality of digital cameras, pixels are often regarded as the focus of investigation when consumers buy digital cameras. Therefore, many consumers have gone into the misunderstanding of high pixels, blindly pursuing high pixels and taking pixels as the only standard to measure the quality of digital cameras. Digital cameras use CCD or CMOS to sense light, and the number of pixels for shooting images depends on the number of photosensitive units on the CCD or CMOS chip in the camera. Theoretically, the more photosensitive units there are, the clearer the image will be. However, because the photosensitive element area of digital camera is much smaller than that of traditional film, adding too many photosensitive units on the limited chip area will cause many problems, such as the reduction of image signal-to-noise ratio and sensitivity.

As we all know, digital cameras need to rely on the internal image processing engine to reduce color errors. The imaging principle of digital camera is essentially different from that of traditional camera. The data obtained by photosensitive elements must be processed and combined to generate the final image file, and the calculation method of processing engine directly affects the quality of the final image. Therefore, pixels can indeed be used as one of the important standards to judge the level of digital cameras, but it is not the only standard. We need to comprehensively examine the quality of digital cameras through their comprehensive indicators.

So buying a camera should not be based on pixels.