Digital camera: What is a sensor pixel? Dynamic effective pixel? Static effective pixel? Total pixels?

The English name of an effective pixel is Effective Pixels, which is different from the largest pixel. Effective pixel refers to the pixel value that really participates in photosensitive imaging. The value of the highest pixel is the real pixel of the photosensitive device, and this data usually includes the non-imaging part of the photosensitive device, while the effective pixel is the value converted under the zoom magnification of the lens. Digital pictures are generally stored in pixels, and each pixel is the smallest unit in digital pictures. The larger the pixel, the larger the area of the picture. To increase the area of a picture, if no more light enters the photosensitive device, the only way is to increase the area of pixels, which may affect the sharpness and clarity of the picture. Therefore, under the condition of constant pixel area, the digital camera can get the largest picture pixel, which is the effective pixel. When buying a digital camera, users should pay attention to the effective pixel number of the digital camera. In fact, the number of effective pixels is the key to determine the picture quality. As mentioned above, there are about 400,000 dynamic pixels. As long as it can meet 720*576, the static theoretical height can be recorded. For example, the card records 4 million pixels of GS400.