Nikon 1718 Instruction Manual - Page 86
Basics, the relationship between focus and depth, field are, explained,
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(' ) r \- !I.J Basics of the relationship between focus and depth of field are explained in this section. • Depth of field When focusing , depth of field should be considered. Depth of field is the zone of sharpest focus in front of and behind the subject on which the lens is focused. It varies according to shooting distance, focal length and, above all, aperture. Smaller apertures (larger f-numbers) will produce a deeper depth of field where the background and foreground become sharper; larger apertures (smaller f-numbers) will produce a shallower depth of field where the background becomes blurred. Similarly, shorter shooting distance or longer focal length will produce a shallower depth of field , and longer shooting distance or shorter focal length will produce a deeper depth of field. Note that depth of field tends to be shallower in front of and deeper behind the subject in focus. Large aperture f/ 2.B Small aperture f/32 • {) 86 I' M !\;