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8.4 Cleaning the Lens
Care should be taken to keep the lens clean. Any foreign matter on the lens will affect the accuracy of
the measurements. Be sure to take care when cleaning the lens. Please observe the following:
1.
Blow off lose particles with clean air.
2.
Gently brush off remaining particles with a soft camel hairbrush.
3. To remove any more severe contamination use a clean, soft cloth dampened with distilled
water. In any case, do not scratch the lens surface!
For fingerprints or other grease, use any of the following:
Denaturized alcohol
Ethanol
Kodak lens cleaner
Apply any of the above to the lens. Wipe gently with a clean, soft cloth until you see colors on the lens
surface, then allow to air dry. Never wipe the surface dry, this may scratch the surface. If the lens is
contaminated with silicones (e.g. from hand creams), clean it carefully using Hexane. Allow the lens to
air dry.
Do not use any ammonia or any cleaners containing ammonia to clean the lens. This
may result in permanent damage to the lens' surface!
XR
Rev. B2 Feb 2017
Maintenance
53
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