Nikon AF-S Nikkor 300mm f/4D IF-ED Silent Wave Motor Manuel D'utilisation page 16

When holding your camera by its handgrip and rotating the camera in
its tripod collar, your hand may bump into the tripod, depending on the
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tripod in use.
Lens Hood
Pull out the lens hood by rotating it slowly until the click-stop position is
released and the hood moves smoothly. Then, turn it counterclockwise (as
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viewed from the front) to secure it in the extended position. Because the lens
hood is not detachable, slide it back to its click-stop position when not in use.
Never lift the lens by its hood. This may cause the lens to drop, due to its
own weight, and become damaged, if it hits something hard.
De
Lens Care
•Clean the lens surface with a blower brush. To remove dirt and smudges, use a
soft, clean cotton cloth or lens tissue moistened with ethanol (alcohol) or lens
cleaner. Wipe in a circular motion from center to outer edge, taking care not to
leave traces or touch other parts.
Fr
•Never use thinner or benzene to clean the lens as this might damage the lens,
result in a fire, or cause health problems.
•To protect the front lens element, an NC filter is recommended at all times. A
lens hood also helps protect the front of the lens.
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•When storing the lens in the lens case, attach both front and rear caps.
•When the lens will not be used for a long time, store it in a cool, dry place to
prevent mold. Also store the lens away from direct sunlight or chemicals such
as camphor or naphthalene.
•Do not get water on the lens or drop it in water as this will cause it to rust and
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malfunction.
•Reinforced plastic is used for some parts of the lens. To avoid damage, never
leave the lens in an excessively hot place.
•Never use an air blower to clean the inside rear portion of the
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lens. Because the diaphragm blades are exposed, they may be damaged by a
strong burst of air. Also be sure to attach the rear lens cap when the
lens is not in use to protect the lens and diaphragm blades from foreign
matter and fingerprints.
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