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Photo Forum / Film Photography / Darkroom / April 2005Do contrast filters fade?
Is it a bad idea to buy used contrast filters? Kodak says that safelight filters change over time, so might contrast filters also fade out over time? I think they are all gel filters, which use dye. Bonus question: Since red is the lowest-energy visible light, is a red safelight safe for any B&W paper? I really don't want to have a stock of filters hanging around and be concerned with which paper I can use with the current filter. I wouldn't get used contrast filters. I don't think that new filters cost enough to be worth it. : Is it a bad idea to buy used contrast filters? Kodak says that : safelight filters change over time, so might contrast filters also fade : out over time? I think they are all gel filters, which use dye. : Bonus question: Since red is the lowest-energy visible light, is a red : safelight safe for any B&W paper? I really don't want to have a stock : of filters hanging around and be concerned with which paper I can use : with the current filter.  SignatureKeep working millions on welfare depend on you ------------------- fwp@deepthought.com All filters fade over time, more so from exposure to light with use. I guess whether I would buy them would depend on just how inexpensive they were, and how much they had been used. Less than $5, maybe, any more and I would put the money toward new filters. As for using red safelights for B&W paper, you could, but why would you want to work in darker less visible conditions than you would have with the standard OC safelight which can be used for most B&W papers. > Is it a bad idea to buy used contrast filters? Kodak says that > safelight filters change over time, so might contrast filters also fade [quoted text clipped - 4 lines] > of filters hanging around and be concerned with which paper I can use > with the current filter. > Is it a bad idea to buy used contrast filters? Kodak says that > safelight filters change over time, so might contrast filters also fade [quoted text clipped - 4 lines] > of filters hanging around and be concerned with which paper I can use > with the current filter. Yes, the filters fade. Buy new ones, and replace every few years. |
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