Quote Originally Posted by MattKing View Post
This is the reason that the adjustment is much smaller for the current films (with a peak sensitivity near 720nm) then with the old HIE (with a peak sensitivity nearer 850nm).
It's not necessarily the peak spectral sensitivity we are after. One of those films in question goes even up to about 800nm, though with much, much less sensitivity. But we can use that by very strong filtration.