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Discussion in 'B&W: Film, Paper, Chemistry' started by blivit, Aug 5, 2013.
Entered in error. I thought I had a problem, instead I had a brain fart.
Where you by any chance holding the negatives up to the light to inspect them when you noticed this. I've found that if I hold a film at a certain angle with a bright light source almost directly behind the film you can actually see see a positive image. I've meant to ask about this before but never got around to it.
This only happens at a particular angle with the light behind.
If you've really got slides I'm stumped. B&W reversal process has several steps including bleaching with nasty acid.
i'll bet you were using a black light so blacks turned white and the whites turned black.