18 megapixel camera works?

Small household card machines all use small area sensors, and the number of images increases to160,000, which has no practical significance for improving image quality. Only those who want to sell will spend more money. There are more than 6,543,800+million pictures in home cameras. After more than 654.38+million pixels, pixels can no longer explain anything. For example, from Panasonic S 1 to Nikon D90, D700 and D3S, it is also120,000 pixels, but the difference can also be seen from the price.

A camera is a kind of equipment 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.

2065438+In September 2008, the Harmonized System Committee of the World Customs Organization classified UAVs as "flying cameras".