Ingo,
Here is a link to the Ilford pdf:
http://www.ilford.com/html/us_english/pdf/HP5_Plus.pdf
which has a small reciprocity chart. For the general Kodak link to their
various films:
http://www.kodak.com/global/en/professional/support/techPubs/f32/f32.pdf
Unfortunately the Kodak product search engine gives nothing for the topic of
'reciprocity'which is too bad because they once had a very good chart in an
old professional products catalogue that gave a good long and short range
adjustments for reciprocity [ i.e.: 1-10 sec and 10-100 sec ranges]. I'll
see if I can find it somewhere else.
Zarkov
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