How did you evaluate exposure Walt? If it was based on the prints? If so it is
quite likely that there was a processing error. You could check the negatives,
but I find it difficult to evalute exposure based on negative inspection. A
proof sheet would give you even more accurate information.
One of the real advantages of slides, as you probably know, is it is easy to
evaluate each individual frame.
Jim Couch
Walt Wayman wrote:
> In a series of four frames about mid-roll, taken just one or two seconds
> apart, the first is two to three stops underexposed; the second is
> perfectly exposed, and the third and fourth are identical to the first. No
> camera or lens setting, not even focus, was changed during this sequence.
> The rest of this 36-exposure roll is properly exposed.--
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