Just to complete the info on the thread:(posted 9131 days ago)"The 0.1 neutral density built into the ESTAR-AH Base is one-half to one-third that found in conventional 35 mm picture-taking films. Correctly exposed and processed pictorial negatives may appear to be "thinner" than normal. It is important to take this into account when you judge the printability of negatives." (Kodak Tech Pub P-255)
Shawn: grain on silver-based B/W films increases with increases in exposure, given the same development. Grain on C-41 B/W films decreases with increased exposure, given the same development. Laurie White's IR book has some great examples.