I've cross processed dozens of rolls of film and the colour of the base varies from film to film, although there is more consistence between manufacturers. Kodak films often do have a light brown base and the resulting images when scanned as a CN have a more natural colour balance. Fuji films seen to come out with a bluer base, with Velvia darker and greener than Provia. Agfa films seem to give a purple base. The base colour obviously makes a big difference to the final image when it is inverted.
Last edited by Simonh82; 10-11-2013 at 07:23 PM. Click to view previous post history.