5. Maintenance
Clean the Lens
If the lens becomes smudged or dirty, you may not be able
to clearly see the image on the head display. If this occurs,
clean the lens as described below.
Important
Use a soft cloth to wipe away dirt and dust from the lens.
Use a soft cloth for cleaning the lens. Never
use ethanol, organic solvents, or organic
chemicals. Such substances could cause the
lens coating to peel off the anti-reflection film,
so that the image will not be seen correctly.
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