Hello,
I've been having some repeated stains on 4x5 sheets that I have given to develop, that I then scan.
Given that it looks like chemical stains I thought it was an issue to do with processing.
The lab who does it having no explanation, I have given them to another lab and had the same issues.
Since it doesn't happen all time but is almost always visible on uniforme skys or surfaces I wonder if it has something to do with the way I expose the film. A problem possibly made made visible once I scan the negative. Its Portra 160 and 400, overexposed a third of a stop. I have joined an image. Note that I have put a curve to better show the problem.
If anyone would have an explanation or has had same problems I would be very grateful to hear from you.
Cheers,
Ben
Bookmarks