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-   -   Black spots (http://www.railpictures.net/forums/showthread.php?t=17896)

charlesstookey 03-21-2017 05:44 AM

Black spots
Every once in a while after scanning a slide I see numerous small black spots. I have tried brushing, canned air and two different negative cleaners to no effect. Again -- it isn't all my slides that have these black spots. Could it be a processing problem? I mainly shot Kodachrome 64 and they were all processed in Texas.

Decapod401 03-21-2017 01:54 PM

I use a soft lens brush on my slides before scanning, and usually a few black spots persist. Most times, I believe that they are dust particles that are more firmly stuck to the film, but I have also heard of cases where Kodachromes have developed a "mold" in the emulsion. I have seen a very few of my slides that may be exhibiting this issue, and that's the reason that I have begun a very long-term project to digitize my entire collection.

No matter what the cause, I clone out the remaining spots while processing in Lightroom.

Doug Lilly

charlesstookey 03-22-2017 03:36 AM

Mold! I had not thought of that. I use the spot healing brush to zap the black spots
but it gets time consuming. Thanks for the reply.

ATSF666 03-30-2017 02:08 PM

Charles - have you looked at the slides with a loupe to see what you can see?

charlesstookey 03-31-2017 05:45 AM

Yes and damned if i see anything. Maybe I need a microscope?

Decapod401 03-31-2017 02:02 PM

You also may be seeing small spots that seem to develop in the skies of some of my photos. I think these are possibly film imperfections, and they will fade away if you lighten the sky. They also disappear if you blur the sky using the adjustment brush.

charlesstookey 03-31-2017 10:30 PM

Good suggestions. Thanks

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