im not completely sure how depth of field is calibrated, but i would have thought that if the camera is zoomed in the objects visible in shot will inhabit a visually compressed space, so i would have thought then that area of focus would be quite large and it would all seem as though its in focus. But then i see zoomed in photos of people walking down the street and the people far behind are blurred, and then i see photos of close up stuff and there is a similar effect of shallow depth of field.
how does focal length relate to depth of field in this way???
Edited by sam williams, 07 October 2008 - 11:52 PM.