Adobe Camera Raw 5.2 features a handful of terrific new tools, including Snapshots and the Targeted Adjustment Tool (TAT). In this screencast designed to supplement The Photoshop CS4 Companion for Photographers, Derrick shows you how to use these great new components. He starts by showing you a saved history of image edits for a photo he adjusted in ACR. Snapshots make this easy, and they work similarly to the same function in Adobe Lightroom. Then Derrick makes a series of tone and color adjustments with TAT.
ACR 5.2 is a free download for licensed users of Photoshop CS4. The Photoshop CS4 Companion for Photographers is a handy guide to building a complete workflow with the tools included in CS4, including Adobe Camera Raw.