What is the depth-of-field and is it related to hyper focal distance?
Depth-of-field is the set of distances from the camera for which things appear in focus. Depth-of-field is influenced by several factors. The hyper focal distance is the distance where depth-of-field is maximized. The Depth-of-field and the Hyper focal Distance article explains these concepts simply and precisely. There is even a hyper focal distance calculator.
