Lon Williamson <[EMAIL PROTECTED]> wrote:

>...if you're doing your own developing, you'll get less spots and
>scratches than if you let the 1-hour lab folks do it.  Meaning, say,
>15 minutes with the Photoshop Clone Brush instead of an hour and a half.

Here's a great way to speed up spot retouching of scanned negatives and
slides in Photoshop (works in 7.0 - I'm not certain of earlier
versions):

Open your image in Photoshop, zoom to 100% and find some representative
examples of the spots you want to retouch.

Under the "Filter" menu, go to the "Noise" option and choose "Dust and
Scratches".

Adjust the radius control in the "Dust and Scratches" dialog until most
or all of your annoying spots disappear. Your image will be hopelessly
blurry at this point; don't worry about it. Click "OK".

Now you have a blurry image with no dust spots. Go to the "History"
palate (if you don't have it open, pull down the "Window" menu and click
on "History"). Click on the history step that's immediately before
(above) the "Dust and Scratches" step you just implemented (this will
usually be "Open").

Now you'll be viewing the original image as it looked prior to the "Dust
and Scratches" filter. You've essentially gone "back in time" to before
used the filter and all your spots will be back.

Now click on the "History brush" box next to the "Dust and Scratches"
step in the History Palate. (This is the square box on the left edge of
the History Palate, next to the "Dust and Scratches" step.) When you
click on this box, a picture of a brush with a circular arrow should
appear in it.

Now go over to the Tools palate and select the History Brush tool (a
brush with a circular arrow just like the smaller one you activated in
the History palate). Set the brush size to about that of the spots
you're going to retouch. I usually use a feathered edge brush.

If you're retouching white spots on an image from a scanned negative,
set the brush Mode (small drop-down box at top of screen - default
setting is "Normal") to "Darken". If you're retouching dark spots on a
scanned slide, set to "Lighten".

Now use the History Brush on your spots. Every spot you hit will be
"transported forward in time" to after the "Dust and Scratches" was
applied. But ONLY that spot will be subject to the filter, not the
entire image. 

I've been pretty detailed in this description, so it may look more
complex than it is. Trust me, it's really fast to set up once you've
done it for the first time. It's *vastly* faster than using the clone
tool, especially for negs with a lot of spots. You may still need to use
the clone tool afterwards if you have any really big spots or scratches,
but the time saving is still enormous.

-- 
Mark Roberts
Photography and writing
www.robertstech.com

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