Wrong. Depth of field is dependant on f-number and sensor size. A small sensor camera can have a fast lens, but essentially no depth of field. http://en.wikip

Wrong. Depth of field is dependant on f-number and sensor size. A small sensor camera can have a fast lens, but essentially no depth of field. http://en.wikipedia.org/wiki/Circle_of_confusion http://en.wikipedia.org/wiki/Circle_of_confusion