The NewAstro Zone System for Astro Imaging
Now available at a heavily discounted price (originally $99.95), with all proceeds going to the Tzec Maun Foundation to help provide free access to internet telescopes for students.
The NewAstro Zone System gives astro imagers the tools they need to master Photoshop for imagine processing. These techniques apply to astro CCD cameras, digital cameras, and even film scans.
The Zone System shows you how to handle color, use Curves and Levels, and the book is filled with tutorials and Photoshop tips.
Practice files were originally included on a free DVD, but there are no more DVDs so purchasers can download the book-related DVD content (about 2GB worth) at the Foundation's web site: zone.tzecmaun.org.