Nikon SB-900 - Manual (Page 123)

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ps on Speedlight care and reference information
Tips on Speedlight care
Cleaning
Use a blower brush to remove dirt and dust from the SB-900 and clean it with a
soft, clean cloth. After using the SB-900 near saltwater, wipe the flash unit with
a soft, clean cloth moistened slightly with plain water to remove the salt, then
dry it using a dry cloth.
On rare occasions, the LCD may turn on or go dark, due to static electricity. This
is not a malfunction. The display will soon return to normal.
Do not drop the SB-900 or hit it against a hard surface, as this may damage its
precision mechanisms. Do not apply strong pressure to the LCD panel.
Storage
Store the SB-900 in a cool, dry place to prevent malfunctions due to high
humidity, as well as the growth of mold or mildew.
Keep the SB-900 away from chemicals such as camphor or naphthalene. Avoid
exposing the SB-900 to magnetic waves from TVs or radios.
Do not use or leave the SB-900 in locations subject to high temperatures such as
those encountered near a heater or stove, as this may cause damage.
When not using the SB-900 for more than two weeks, be sure to remove the
batteries to prevent malfunctions due to battery leakage.
Take the SB-900 out once a month, insert the batteries, and fire the unit several
times to reform the capacitor.
Operating location
An extreme temperature change can cause condensation to form inside the
SB-900. When subjecting the SB-900 to sudden and extreme temperature
changes, place it inside an airtight container such as plastic bag. Leave it
inside the container for a while before exposing it gradually to the outside
temperature.
Avoid exposing the SB-900 to strong magnetism or radio waves from TVs or
high-voltage power transmission towers, as this may cause it to malfunction.
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Never use thinner, benzene, or other active
agents when cleaning the Speedlight,
as this may damage the Speedlight or cause it to catch
on fire. Using these agents may also impair your health.
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WARNING
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