Quote Originally Posted by Mark Sawyer View Post
I've seen correctly-exposed film processed with the developer/fixer order reversed, and there's still a faint, unusable-but-visible image.
That would indicate that either the 'development' time would have been shorter than the required fixing time, or the fixer being exhausted - on top of the reversal of the chemicals. With properly mixed and reasonably fresh fixer, switching the fixer and developer bottles would result in a completely clear piece of film with no image at all.