Yes Digital ice can soften an image, especially if there is a lot of dust etc. on it, so if you are scanning with it, it still behooves you to start with as clean of a negative/slide as possible. It also does not work with either conventional B&W or Kodachrome though it works fine with chromegenic B&W. Digital ICE uses an infa-red light to detect dust and B&W and Kodachrome are not IR transparent. B&W is not supposed to scan as well as color. I've never tried it but I have friends that have had reasonable success with scanning MF and LF B&W negs.
Butch Each man had only one genuine vocation - to find the way to himself. Hermann Hesse (Demian)
