Originally Posted by ParkerSmithPhoto
Thin negs can scan surprisingly well. They are in many ways preferable to denser negs (for scanning, not printing).
There is something called the Q factor (for scattering) that affects scanning; dye images are no problem but the more silver, the more scattering. That's why lower density negs scan better.
Obviously, we are talking here in the context of scanning negs for use in the APUG photo gallery.