Removal of yellowing from some Super Takumar lenses is often discussed on the Spotmatic Yahoo Group. Here's an extract from some info I copied some time ago.
Doesn't help with fungus, though. "Wrap the UNCAPPED lens in aluminum foil, all but the rear element. Put it on a windowsill in your house that gets full sunlight, tilted so the maximum sunlight enters the lens (it then bounces back off the foil at the front. The UV light from the sun is said to do the trick, eliminating the yellow in from two to six weeks. The maximum time was needed for some very old 50/1.4 Super-Takumar lenses; the minimum for my newest SMC Takumars with chequered rubber focus rings, and for an SMC Pentax 50/1.4 K-bayonet mount lens, the one with the 52mm filter thread." Cheers Brian ++++++++++++++++++++++++++++++++++ Brian Walters Western Sydney Australia Quoting Charles Robinson <[EMAIL PROTECTED]>: > On Jan 5, 2007, at 1:59, Brian Walters wrote: > > > > > ... and on that note (in case any still haven't seen it): > > > > http://www.hermes.net.au/bayling/repair.html > > > > Isn't there a REAL fix for this? I thought I'd read somewhere that > > leaving the lens exposed to UV light (like out in the sun) for a > while also cleared up the yellowing... Ouch. > > -Charles > ---------------------------------------------------------------------- Stone Hawk Drug Rehab Stone Hawk drug rehab has the highest success rate nationwide with 76% http://tags.bluebottle.com/fc/MhtYWUi9ASEgoWzz2x9kY8P0Cfi9V9s66NElA/ -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
