So, i took 6 frames last week, slides, color neg and 2 bw. For the bw and color neg, a friend and f mine held a filter in front during exposure. The color neg and slide came out just fi e however, the black and white came out 2/3 unexposed. The line between exposed and unexposed is fuzzy so the dark slides were not left part way in couldn't have been my friends hand as other two frakes he held filter for are fine and the slides are fine. Same lens same image. All I can think of is the lab screwed up.

Thoughts?

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