Quote Originally Posted by markbarendt View Post
The ISO rating of a film is done per ISO specs by the manufacturer. Probably not done with Rodinal.
Correct. The developer is specified in the standards. It is not related to Rodinal.

We should also mention although unlikely, Rodinal may or may not produce a curve with this film which meets the standards for ISO 400. A recommended EI on digitaltruth could still be any other number.