RE: [APML] IC 410 uploaded and IC 405 adjusted

["Chris Schur" <cschur@therim.com>]

Alan, this tool is ESSENTIAL for Astrophotographers, and Ill be glad to
explain it.  Open you image, and hit cntl-L to bring up the levels dialog
box.  On the lower right are three eyedropper symbols in a row.  The middle
one is the gray eyedropper.  click on it, and now anywhere you click with it
in your image, it will try to make it neutral gray.  where you want to click
it is in the sky between the stars.  You may have to click it several times
to get the right neutral gray background.

Hope this helps!

Chris Schur

-----Original Message-----
From: astro-photo-bounces@seds.org
[mailto:astro-photo-bounces@seds.org]On Behalf Of Alan Voetsch
Sent: Sunday, October 31, 2004 4:50 PM
To: Discussion of Film Astrophotography
Subject: RE: [APML] IC 410 uploaded and IC 405 adjusted


Hey Chris,

--- Chris Schur <cschur@therim.com> wrote:
> Alan, Id like to make a few comments on your images.  First, the
> background
> is a very deep blue, and this greatly subtracts from the faint
> nebula.  Use the gray eyedropper in PS to correct this easily.

OK, I've decided to bite the bullet and expose my ignorance, but, I
don't know how to use the eyedropper thingy. I have never used it and
don't understand how to use it, or even in what context to use it. Any
useful advice out there?

> Second, its hard to tell,
> but you may be able to enhance the reds a bit once the background is
> neutralized.

I'll look into doing that. Thanks for your comments Chris.

Alan



=====
SCT Astrophotography: http://www.pbase.com/avoetsch/astrophotography
FS-102 G-11/Gemini: http://www.pbase.com/avoetsch12952/tak_fs102
& http://www.pbase.com/avoetsch12952/fs102



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