Hi there, I recently bought a job lot of old but sealed photo paper, and got several sealed boxes of kodak lightning and ilford hyper-chromatic plates as well (bargain for 99p!) So, my problem is, what are these plates for? I really have no idea about them other than they are all 2 1/2x3 1/2 inches, the ilford boxes contain 24, and the kodak boxes contain 12, and the kodak ones are P1500. So can anyone please tell me what they are for negatives in a camera or prints, are they likely to be any good any more, anything about them really....thanks, Phil