Whats the diffrence between the focal point and the working

What\'s the diffrence between the focal point and the working distance?

Solution

Focal point is the point where light converges after it passes through a concave lens.. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged

There is a difference between focus distance and working distance of a camera lens. The focus distance is the distance between the two focal planes of the lens, i.e., the distance between subject and film or sensor. The working distance, on the other hand, is the distance between the subject and the front mount of the lens, i.e., in practice, the smallest gap between camera equipment and subject. The working distance is particularly relevant in close-up and macro photography, because in these conditions the distance between camera and subject are very small, and this may make it difficult to position the camera and light sources appropriately.