100 Mpixel from 20 square inches is the same as 6.7 Mpixel from a 35mm frame (which each work out to around 2200ppi). Just how much that shows up grain depends on the film; if you're shooting Tri-X you'll definitely see grain, while scans from Velvia will look fairly smooth.
> How big is one of those pixels compared to film grain ? > > J. C. O'Connell wrote: > > > You can get over 100 Mpixel images from 4x5 film > > with inexpensive Epson 3200 scanners. > > JCO >
