浅焦点?

浅焦点, 浅焦点, the optical phenomenon known as 浅焦点 (浅焦点), 浅焦点 (浅焦点) 浅焦点. 浅焦点, the decrease in sharpness is gradual on each side of the POF, so that within the DOF the unsharpness is imperceptible under normal viewing conditions.

In some cases, it may be desirable to have the entire image sharp, and a large DOF is appropriate. In other cases, a small DOF may be more effective, emphasizing the subject while de-emphasizing the foreground and background. In cinematography, a large DOF is often called deep focus, and a small DOF is often called shallow focus.