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Focusing, zooming, and depth of field
Before focusing, rotate the zoom ring 5 to adjust the
focal length until the desired composition is framed.
If your camera has a depth-of-field preview (stop-
down) button or lever, depth of field can be previewed
through the camera viewfinder.
• This lens is equipped with the Nikon Internal
Focusing (IF) system. As the shooting distance
decreases, the focal length also decreases.
• The distance scale does not indicate the precise
distance between the subject and the camera. Values
are approximate and should be used only as a general
guide. When shooting distant landscapes, depth of
field may influence operation so that the camera may
focus at a position that is closer than infinity.
• When the zoom lock switch g is set to LOCK
position at the focal length of 18mm, the zoom ring is
locked. When carrying the camera, lock the zoom ring
to prevent the lens from extending due to its own
weight.
■ Setting the aperture
Use the camera to adjust the aperture setting.
■ Variable maximum apertures
Zooming the lens from 18mm to 200mm decreases the
maximum aperture by 1
1
/3 stop.
However, there is no need to adjust the aperture
setting to achieve correct exposures because the
camera automatically compensates for this variable.
■ Focusing (Fig. A)
Set your camera’s focus mode selector according to the
chart below:
For more information on camera focus modes, refer to
your camera’s User’s Manual.
Autofocus with manual override (M/A
mode)
1 Set the lens focus mode switch d to M/A.
2 Autofocus is enabled, but autofocus operation can
be overridden by rotating the separate focus ring
0 while pressing the shutter-release button
halfway, or by pressing the AF-ON button on the
camera body of cameras so equipped.
3 Press the shutter-release button halfway or the AF-
ON button once again to cancel manual focus and
resume autofocus.
Getting good results with autofocus
Refer to “Notes on using wide- or super wide-angle AF
NIKKOR lenses” (P. 21).
Camera focus
mode
Lens’ focus mode switch
M/A M
AF (A/S/C)
Autofocus with
manual override
Manual focus (Focus
assist is available.)
MF Manual focus (Focus assist is available.)