I just hate it when film "producers" don't wan't to disclose the origin of their film and you have to second guess what it may be, to get useable results.
For that reason I have tried to stick to primary producers that I know make their own film.
AgfaPhoto APX400 instead. According to https://en.wikipedia.org/wiki/List_of_photographic_films it is likely Kentmere
Here's a question: why doesn't Agfa sell its own film? I would assume that "AgfaPhoto" is not actually a brand of the Agfa that makes Aviphot (the film Rollei uses). How much use for aerial film is there in the world, anyway?
Agfa could have set up a small sales department as the Maco enterprise themselves, but their idea just was to get rid of the consumer business. This they followed strictly.
I do not get your point at all. Anyone can order at Agfa a tollcoating. If Maco has a demand that makes a production run viable they can order such for an aerial film no longer produced by Agfa for their own behalf.
If Maco or anyone else established on the consumer business has no demand for a re-run why then should they even consider a rerun on own behalf?
Go and visit Agfa, after all downsizing their main plant alone is still a huge chemical plant.
Advising it to run on a few amateurs using some film of theirs is a silly idea.
RPX-25 is based on the AGFA Aviphot 80 material. It is the same material like the Rollei R80S, but in much better quality (film convertion)..
Forget the data sheet. It is fake (it is taken from Aviphot 40).
Expose the film at 32/16° ISO (developer ATOMAL 49).
This film is IR sensitive. Use a R72 filter and shoot at 1.2/2° ISO (developer ATOMAL 49).
According to the Agfa data sheet - 'Its spectral sensitivity to up to 750 nm makes Aviphot Pan 80 an outstanding tool for differentiation of species in agricultural and ecological studies'.
So should I expose at 12 ISO and underdevelop the neg from the ISO 25 time? At 25 ISO the time is 8 minutes in Xtol 1:1. What should I do it at? Or should I expose at 32 ISO and develop for the 25 ISO time?
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