How many pixels does the camera need to take a good picture?

There is no standard for the number of pixels, and how many pixels are enough depends on how the photos are used.

If the photos taken are basically used on TV screens, computer screens or tablets, then the current full HD standard is 1920* 1080, which is 2.07 million pixels; At present, the maximum computer screen resolution is about 2560* 1600, which is 4.09 million pixels.

The best graphics card can support up to 4096*4096, which is16.77 million pixels, so if the computer resolution is only full HD, 2 million pixels is enough. To achieve the effect of traditional film, it needs more than 300 pixels per inch.

Extended data:

A camera is a device that uses the principle of optical imaging to form an image and records the image with a negative. This is an optical instrument used for photography. In modern social life, there are many devices that can record images, all of which have the characteristics of cameras, such as medical imaging equipment and astronomical observation equipment.

After the light reflected by the shot scene is focused by the camera lens and the shutter that controls the exposure, the shot scene forms a latent image on the photosensitive material in the camera box, and forms a permanent image after being developed and fixed. This technology is called photography, which is divided into general photography and professional photography.

The earliest camera structure was very simple, including only a black box, a lens and photosensitive materials. Modern cameras are complex, including lens, aperture, shutter, ranging, framing, photometry, film transmission, counting, self-timer, focusing, zooming and other systems. Modern camera is a complex product integrating optics, precision machinery, electronic technology and chemistry.