Nikon P-FLA2, Instructions Manual, Page: 29 / 43

E-9
Be sure to always follow these guidelines.
4. Handling of filters.
Interference filters (especially excitation filters which are exposed to
strong light) deteriorate over time. Replace them after the expiration
of a predetermined time interval.
Filter characteristics may change if the filter is exposed to high
humidity. To prevent changes in or deterioration of filter
characteristics, avoid using or storing the filters under conditions of
high humidity or high temperature, and avoid subjecting them to
rapid temperature changes. When a filter is not in use, store them in
a desiccator or a hermetically sealed container with a drying agent.
5. Lens cleaning
Do not put dust or fingerprints on the lens surface since this will
degrade the sample image. If the lenses gets dirty, clean them as
follows.
•
Use an air blower to blow away dust. If that does not suffice,
brush away the dust with a soft brush, or wipe it away gently with
gauze.
•
Only if there are fingerprints or grease on a lens or filter, dampen a
piece of soft, clean cotton cloth, lens tissue, or gauze with absolute
alcohol (ethyl alcohol or methyl alcohol) and wipe away the dirt.
Do not use the same part of the cotton (lens tissue or gauze) twice
when wiping.
•
Absolute alcohol is extremely flammable. Keep this flammable
liquids away from fire or sparks. Be sure to turn off the power
switch when handling the absolute alcohol.
•
Always follow the instructions provided by manufacturer when
using absolute alcohol.