I have read that the film normally requires over exopsure by aboubt 1/2 or 1 stop. Cos the manufacturer also up their ratings. Was wondering where can i get "true" ISO ratings of films.
I have heard that Press 800 must be exposed at ISO 640 to get good results? And NPH 400 exposed at ISO 320. What about other films? By overexposing films, will i encouter problems in scanning the negatives, as it will be too dark?
Also another question, what are the difference between Press 800 and the normal Xtra800. Is it grain size? I have read the film characteristics, they are the same. Was wondering whether they renamed the film and sell it at a higher price.