What do you mean by p, a, s, m and mp?

P file in SLR camera refers to program automatic exposure mode; A file refers to the aperture priority automatic exposure mode; S file reference shutter priority mode; M file refers to manual exposure mode; MP refers to a million pixels.

SLR digital cameras are located in the high-end products of digital cameras, so in terms of the area of photosensitive elements (CCD or CMOS) related to the photographic quality of digital cameras, the area of SLR digital cameras is much larger than that of ordinary digital cameras, which makes the photosensitive area of each pixel of SLR digital cameras much larger than that of ordinary digital cameras, so each pixel can show more detailed brightness and color range, which makes the photographic quality of SLR digital cameras significantly higher than that of ordinary digital cameras.

A single-lens reflex digital camera refers to a single-lens reflex digital camera. In this system, after the light reaches the mirror through the lens, it is refracted to the focusing screen above to form an image. Through the eyepiece and pentaprism, we can see the scenery outside in the observation window. In contrast, ordinary digital cameras can only see the captured images through the LCD screen or electronic viewfinder (EVF). Obviously, the directly seen image is more conducive to shooting than the processed image.