22
Cleaning
Recommended Cleaning Procedure
For minor particle contaminants like dust, pollen, rain residuals,
etc., and moderate contaminants like fingerprints or comparable
strains:
1 Dust blow the surface to remove dust and lint.
2 If the surface is still not clean, gently brush off residual
loose contaminants.
3 Use one dedicated tissue/cloth for each liquid: one for
neutral window detergent, one for deionized distilled water,
and one for spectroscopy grade isopropyl alcohol. The
liquids should be used in this sequence.
4 Using a bright light source, check for cleaning agent
residues, streaks, or other contaminants. It is common to
breathe carefully on the optical surface and then to gently
wipe off the condensed moisture with a soft cloth, e.g. a
clean ARRI Optical Cleaning Cloth. If you decide to do so,
avoid saliva droplets on the surface and do not firmly wipe
dry parts of the optical surface. If the surface is still not
clean, repeat the cleaning sequence.
WARNING!
•
Do not use any strong or aggressive cleaning detergents
like Methanol, Acetone, Benzine or acids, as they may
damage the optical coating or lens barrel!
