Hi All
I'm just wondering is anyone has worked out any filter factors for the Foma emulsions.
I'm well into a pack of 5x7" already, mainly test shots of one sort of another, but hoping to keep my future hit rate high.
According to the datasheets ( ... ) they all look the same and are rather red-biased.
To be honest I'm not sure if the 'Y' axis begins at zero on those plots, but anyway..

My first impressions with a yellow filter (Hoya Y / K2 ) is that it might only need 2/3rds stop, rather than my normal 1 stop for Ilford film.
I suspect the Orange might not be 2 stops, either.

I could get a roll of 35mm to work it all out ( might still ) but interested to hear what anyone else has found.