Most scratches I have on BW negs are not through the silver image, but
either on the non-emulsion surface, or on the emulsion side, but not
through it, so that light shows through.
That's one nasty type of scratch that literally goes through the silver
image.
Obviously one problem with using
Rob's right, of course; since IR won't pass through silver halides, it won't
have much reference for repairing a BW neg. OTOH, it seems like it would
create a perfect mask if the neg were scratched, because the IR *would*
pass through the scratches. It could then be offset slightly to pick up
Lynn wrote:
Rob's right, of course; since IR won't pass through silver
halides, it won't have much reference for repairing a BW neg.
Well, let's be more specific about this - scanning a BW neg
in RGB looks the same as scanning it in IR. It's *not* simply
black in IR. I haven't looked at the
Lynn wrote:
Roger wrote:
Silver based black and white film won't pass IR, so there's no way to
use
IR dust removal with it.
Granted that it's not going to be effective for *dust removal*,
wouldn't IR still be extremely usefull for a badly-scratched
silver-halide neg?
How does the software
Darrell wrote:
I have some vague idea of how infrared scanning is used to remove dust
and
scratches from film scans on scanners that have this capability. Is there
any possibility that this method could mistake elements of the actual image
on the film for the undesirable dust or scratch and
