On Sun, 12 Sep 2004 21:39:05 -0300, Jim Colwell <[EMAIL PROTECTED]> wrote: > Henri, > > I'm not convinced that simple exposure to sun light or UV will produce the > yellow tint. I've seen and taken many pics of lenses with sunlight on and > through the lens, and have not seen the yellow cast; however, as someone > once said that I'm not always right (I still think that they were mistaken), > I asked the seller and he assured me that the lens is crystal clear with no > yellowing. He figures the yellow cast is a reflection from the SMC. I > suppose it was from a nearby bunch of bananas or a passing yellow VW. >
Could it be that Henri was trying to say that sunlight or UV is a ~cure~ for the yellow curse? It has been reported that direct exposure of lenses afflicted with the Yellow Curse to sunlight (most likely due to the UV rays in sunlight) will eradicate The Curse. Cover the back of the lens with aluminium foil, and leave the lens, front element up, in the sun for a couple of days. Gets rid of yellow. I think JCO has reported such successful cures. I've got a Super Tak 1.4 50mm with a slight but very noticeable yellow cast. I keep forgetting to put it out, and since today's sunny, I'll do it right now and report back... cheers, frank cheers, frank -- "It's about time we started to take photography seriously and treat it as a hobby." -Eliott Erwitt
