RE: filmscanners: Scratched Negs & Home C-41 processing

[Tim Victor <TimVictor@csi.com>]

On Tuesday, January 23, Sean Harding wrote:
> Well, you know the weird thing is that I also develop my own black and white
> (I have for years), and I've never had this problem.

Now you've done it! I was just watching Ken Burn's "Jazz" documentary
(fabulous) but I kept getting distracted by the white dust on some of the
old black & white stills. Not all, but a lot of them. It looked like the same
kind of trash I've seen on my color scans.

I was trying to imagine that the pictures with the most spots might have
been the thinnest negatives, or maybe have been printed under the least
controlled conditions. I dunno, no conclusions, but they were definitely
there.

> I've even had a color
> roll with this problem developed the same day and dried in the same place
> and time as a black and white roll that didn't have any problem. I don't
> know if something about the color film just attracts dust more or what. 

Interesting. Do you have any sense of how much contrast the black &
white negs had and how they compared to the color? I've got that idea
on my brain now. It seems like the specks will be most noticeable on
a negative that doesn't have a whole lot of contrast, where they're the
darkest spots in the frame and they get clipped to pure white in the
final image. Just a theory though...

> Since I can't easily clean off these "specks," I'm still not 100% convinced
> that the problem I'm seeing is actually dust. After I get home from work
> tonight, I'll scan a frame with this problem and post it on the web so you
> can see what I'm talking about.

That'll be interesting to see.

Best wishes,

Tim Victor
TimVictor@csi.com

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