Archived posting to the Leica Users Group, 2007/11/08
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Philippe, I actually thought of that. Len On Nov 8, 2007, at 12:18 PM, Philippe Amard wrote: > Why not go and ask the charming lady at the beauty salon to keep > the lens in the UV room for a while > I'd try that if I thought it would do it any good. > Phil...x > > Leonard Taupier wrote: > >> Thanks Chris >> I stopped using the window sill. I've been putting the lens in >> the sun when it's bright, but most of the time I've been using a >> BLB blacklight bulb. It's only UVA. I don't know which wavelength >> is most effective. I could buy a UVB suntan lamp but I won't >> spend the money. If what I'm doing doesn't work I'll just >> continue to shoot b&w with the lens and be very happy. >> >> Len >> >> >> On Nov 8, 2007, at 11:16 AM, Chris Saganich wrote: >> >>> I believe low-E glass coatings suppress infrared, either way >>> those coatings don't do much for UV. The UV you would need to >>> reverse the coloration would be quite a bit more then found on >>> a windowsill. About one month continuous 24/7 exposure would do >>> the trick. Best to get a UV lamp and a tinfoil lined box. >>> >>> >>> Chris Saganich, Sr. Physicist >>> Weill Medical College of Cornell University >>> New York Presbyterian Hospital >>> chs2018@med.cornell.edu >>> Ph. 212.746.6964 >>> Fax. 212.746.4800 >>> Office A-0049 >>> >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information