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I am trying 5X7 for the first time, and find the first box of 5X7 film perplexing. Of the first four sheets of film, one seems to have the 3 roughly semicircular notches I am familiar with from 4X5, the next two sheets had one triangular notch. Is it possible some ASA 400 was mixed in?
The 5x7 FP4 notch code is different than the 4x5 FP4 notch code- at least it is between my two boxes of it. I wonder if at some point they decided to make all FP4 have the same notch codes and you get a box with a mix of old and new codes?
Wierd. Maybe they cut the sheets down from 8X10 and then notched the blank half
with a different machine???
Try asking over on APUG. Simon R. Galley from Ilford is a member there and is pretty good about replying to questions.
I have now inventoried the complete box of new film I bought mail order from B&H-and done the research.
22 sheets of FP4
2 sheets of what appears to be Fomapan 200 (single triangle notch)
1 sheet with no notch
If the box of FP4+ was purchased new and sealed at the factory before it was shipped, more than likely, all of the sheets are Ilford FP-4+ film that was improperly notched.
Ilford doesn't make Fomapan.
Yes I know Ilford doesn't make Fomapan, was simply relating it to the notch.
To finish this it is not a common occurence?
Been using Ilford FP-4+ and HP-5+ for more than 25 years. Never experienced improperly notched film.
FYI, 4x5 Bergger BPF 200 film also used a single V notch.
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