BobF, Thanks for reading the density differences in the differing formats. I thought that I remembered that 35 mm carried a higher FB+fog then sheet film. As I recall the reason that I was given for this is that 35 mm uses a thicker polyester support. The tint that you noted would certainly contribute because it would act as density. The thicker support may be used because the physically smaller film would be more prone to distortion then the larger physical size of sheet film.
Originally Posted by BobF