Fogged again... I'm coming to the conclusion that new film holders are a waste of time, money and film. Of the seven holders I've bought new, two have been taken out of service (one 4x5, one 5x7), and another one is suspect. What I now figure is: If I buy five used holders for the same price as four new ones (and that's expensive, but I'll stick to Linhof holders), and two of them fail, I'll still get more holders for my money. Instead of "dark slides" which aren't... Since some holders are going to fail anyway, I'll let someone else do the testing and sorting. Makes sense?