超焦点距离又称超焦距 ,是景深理论中较为特殊的现象。研究超焦点距离 ,是为了解决从有限远一直到无限远这样一个很大的距离上景物清晰问题。也就是说 ,在保证无限远景物清晰的条件下 ,怎样才能使离镜头尽可能近的景物同时结成清晰的像。根据景深原理 ,要获得最大的景深 ,调焦 Hyperfocal distance, also known as hyperfocal distance, is a special phenomenon in the depth of field theory. The study of the hyperfocal distance is to solve the problem of sharp objects on a large distance from finite to infinity. In other words, under the condition that the scene of infinity is clear, how to make the scene as close as possible to the lens at the same time form a clear image. According to depth of field principle, to get the maximum depth of field, focusing