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Message: <blockquote data-quote="Alexis Powell" data-source="post: 1274753" data-attributes="member: 5327">Hmm...to each their own, but I can't imagine why there would be an issue (or larger issue than in many other circumstances) with the use of Armor All on eyecups or items that contact the face.  The bottle declares it to be "nontoxic" and says nothing about avoiding skin contact during application.  It does say to avoid contact with eyes, but I think this means during its application (it comes in a spray bottle).  Some people spray this stuff all over their car interiors, so I can't imagine how problems would result from its careful application to binocular eyecups, followed by a drying period, wipe down, and additional drying.  Also, note that eyeglass wearers such as myself don't have skin contact with the eyecups anyway.  Armor All has a strong preservative effect on eyecups, so I think a person would be foolish not to take advantage of it, or else to find another brand of rubber preservative whose lawyers are OK with authorizing its use on binocular eyecups.  I note that binoculars returned to me after being serviced by Leica had obviously been treated with some kind of rubber preservative.    --AP</blockquote>