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WB reverse image solution?! - white band on darck background (Feb/26/2008 )

what are the reason to get reverse image on WB (white band on darck background) ?
is it common problem?

can I just reverse the color using softwear and i get my result??


could it be an overexposed film?


Sometimes this happens if you use too much of the second antibody. Try to reduce the amount.