Keywords: Focus ubt.jpeg This picture shows what photographers call Depth of Field It is the fact that when taking a picture the focused zone will extend more or less depending on the aperture of the diaphragm the smaller the diaphragm the longer the DOF i e the longer the zone which will appear focused Of course this depends on the capture support used; with a very grainy film the DOF will be bigger than with a slower film the point being that the blurriness must be smaller than the grain own 2004 3 28 photo by user tsca/info tsca Black and white photographs Texts Photographic effects Depth of field Written words |