Nikon EM - Understanding Depth of Field

E. Depth of Field
When you focus on your subject, you will find that objects both in front of and behind it also appear to be in focus. This
"
zone " of focus is called depth of field. In general, to control depth of field, use the lens aperture ring. selectively,
remembering that the lower the number of the aperture set
(i.e ., the wider the lens aperture), the" 'shallower" the depth
of field, and vice
versa. You can also use the color-coded depth-of-field indicators. of Nikon Series E and Nikkor
lenses. The wider the gap between two identical colors (which match the color of the lens aperture number
in use) , the
deeper the depth of field, and vice versa. Remember, when selecting
an aperture based on depth of field, the
shutter speed will change accordingly.
Be careful that you don't use a shutter speed which is too slow for hand-held
shooti
ng or for moving subjects.
Lens set at f/1 .B Lens set at fiB
Lens set at f/16
25