One of the easiest ways to convert a series of still images to HD time lapse video is through the tools available in Adobe Photoshop CS4 Extended. It is just a couple of mouseclicks from open to export with this program.
This TechTock video tutorial covers cropping to the 16:9 HD aspect ratio and 1080p and 720p pixel dimensions in four Adobe software programs: Adobe Camera Raw 5.5, Adobe Photoshop Elements 8, Adobe Photoshop CS4, and Adobe Lightroom 3 Beta. Even if you think you know your crop tool, you could learn some cool new shortcuts and tool tips in this video. Recorded and produced by Jack Howard for the Adorama Learning Center and TechTock blog.