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Focusing, zooming, and depth
of field
Before focusing, rotate the zoom ring 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 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 and the subject may appear in focus
at a position that is closer than infinity.
• For more information, see page 144.
Setting the aperture
Use the camera to adjust the aperture setting.
Using the lens hood
Lens hoods minimize stray light and protect the lens.
Attaching the hood
• Be sure that the lens
hood mounting
index ( ) is aligned
with the lens hood
setting index ( )
(3).
• To facilitate attachment or removal of the hood,
hold it by the base (near the lens hood attachment
index (
))
rather than its outer edge.
• If the lens hood is not correctly attached, vignetting
may occur.
• To store the lens hood, attach it in the reverse
position. To facilitate attachment or removal of
the hood, hold it by the base (near the lens hood
setting index (
)) rather than its outer edge.
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