On Mon, 3 Sep 2001 16:06:21 -0700 Chris Hargens (ldmr@cruzio.com) wrote:
> Any suggestions for removing water spots on film?
It depends on which side of the film. If on the base side, gentle cleaning
with a wet, soft fibreless cloth will do it - eg Pentax or Canon
microporous lens cloth works well. You don't need much liquid or pressure.
If on the emulsion side, the refractive index of the emulsion has been
changed locally due to different drying rates. Resoaking in an alkaline
solution (such as dev) will rehydrate the emulsion. You will have to wash
it thoroughly afterwards too. But I don't think you will find it very
effective - the mark will mostly return as it dries.
Probably the best solution is to use Tetenal Repolisan, a lacquer with the
same RI as gelatin, which really is capable of magic where there is
emulsion damage. However it is risky stuff, since any dust or dirt will be
fixed into the rapid-drying lacquer forever. But it cures any emulsion side
abrasion or damage.
Regards
Tony Sleep
- Online portfolio & exhibit; + film scanner info
& comparisons
