The human vision is an engineering marvel compared to the film and now, the digital sensor. It possesses a huge dynamic range to the upward of 20 EV as well as a virtually unlimited depth of field. In our forever pursuit of sharpness, its range or the depth of field (DOF) is an essential tool to bring emphasis to our subject within the composition.
The following article by renowed nature photographer, George D. Lepp, described the in-camera and in-computer manipulation of this element in the creation of an unforgettable image:
http://www.outdoorphotographer.com/how- ... pness.htmlGood birding and photography.