On Aug 30, 2006, at 10:38 PM, Paul Stenquist wrote: > Look at the splotchy areas on the left and upper right. Very typical > of fungus growth. Element separations are usually more uniform in my > experience. It certainly won't hurt to send it to Colorado. But if it > were mine, and I had a reputable repair place on hand, I'd have them > take a look at it first.
Looks like fungus to me, too. Element separation usually starts at the edges and then creeps inward. Separation is hardly ever seen with modern UV-cured optical cement. It was much more common in the days when balsam was used. Probably the fungus has etched the coating and can't really be cleaned off completely. Better to replace the lens element if still available from Pentax. This is a job for a real expert, since focus will have to be reset and centration ought to be checked. Bob -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
