The Curves and Levels dialogs in Photoshop CS3 featured an Options button that seems to be missing from Photoshop CS4. Press-and-hold the Option (PC: Alt) ...
Photoshop CS4 defaults to opening multiple documents as tabs in a single window. To open your images in separate windows as in prior versions, press ...
To stitch a panorama captured with a fisheye lens, select the images in Bridge, choose Tools>Photoshop>Photomerge, use the Auto setting, and turn on the Geometric ...