I asssume after another 30-35 years the yellowing would return. I did it on many different examples of the lens once only.
-- J.C. O'Connell (mailto:hifis...@gate.net) Join the CD PLAYER & DISC Discussions : http://tech.groups.yahoo.com/group/cdplayers/ http://launch.groups.yahoo.com/group/cdsound/ -----Original Message----- From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf Of Bruce Walker Sent: Thursday, December 22, 2011 10:14 AM To: Pentax-Discuss Mail List Subject: Re: Seek and ye shall find Takumars Permanently? Or does the yellowing eventually return? On Thu, Dec 22, 2011 at 7:31 AM, J.C. O'Connell <hifis...@gate.net> wrote: > UV will definitely clear the yellowing on the 35/2 supertak. Ive done > it myself many times using a black light (UV). Don't know about > fungus, doubt that. > > -- > J.C. O'Connell (mailto:hifis...@gate.net) > Join the CD PLAYER & DISC Discussions : > http://tech.groups.yahoo.com/group/cdplayers/ > http://launch.groups.yahoo.com/group/cdsound/ > > > -----Original Message----- > From: pdml-boun...@pdml.net [mailto:pdml-boun...@pdml.net] On Behalf > Of Paul Stenquist > Sent: Thursday, December 22, 2011 7:29 AM > To: Pentax-Discuss Mail List > Subject: Re: Seek and ye shall find Takumars > > > > On Dec 21, 2011, at 12:32 PM, Charles Robinson wrote: > >> On Dec 20, 2011, at 18:52, Paul Stenquist wrote: >> >>> I don't have a hood, but you may want to hold the lens up to a white >>> light to see if there's a yellow cast to the elements. The 35/2 Tak >>> is one of the lenses that may have been built with the radioactive >>> elements . If so, it would be subject to yellowing. No problem >>> shooting digital. It's only a drawback when shooting film. (I have a >>> yellowed 35/2, hence my knowledge of this.) >> >> Have you not tried the "subject this lens to UV light for quite some >> time" cure for this? >> >> Just needs a bit (ok, some days) of sunlight. Or so I have read. > > I don't use the lens, so I really haven't tried to correct it. I've > heard of the UV light fix for fungus. Don't know if it will cure the > yellowing. Paul >> >> -Charles >> >> -- >> Charles Robinson - charl...@visi.com >> Minneapolis, MN >> http://charles.robinsontwins.org >> http://www.facebook.com/charles.robinson -- -bmw -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
