On 4/11/2011 03:21, Rob Studdert wrote:
The tip is impregnated with activated carbon as I understand, this is designed to effectively mop up oils and other contaminants. Any modern lens coatings should remain unaffected when subjected to even the most overzealous lens cleaning regimens so long as potential abrasive materials are brushed away prior to treatment. I prefer this type of cleaner over liquid applications as liquids have a nasty habit of finding their way into places that they aren't wanted even with careful application (cleaning discrete glass elements is another matter).
Thanks, Rob, and everyone else who replied. I think I got my answers. Boris -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

