What do you mean by deep prospects and deep scenery?

The depth of field consists of two parts. The spatial distance in front of the subject that can be clearly imaged is called deep foreground; Similarly, the spatial distance behind the subject that can be clearly imaged is called the depth of background, and the range of depth of field is the sum of the depth of foreground and depth of field.

What is the depth of field? The distance from the nearest point to the farthest point that makes the subject produce a clearer image is the depth of field. It is also the spatial depth at which the subject can be clearly imaged. In the depth of field, the sharpness of scene images is not completely consistent, among which the sharpness of focus is the highest, and the sharpness of other images decreases in direct proportion to their distance from focus.