Startrails and Stacking : Photoshop and Starstax Tutorial:
*Please forgive me for the typo in the title, I exported this video way too late last night. It should say StarStax not StaxStax :)*
This is a tutorial explaining the different ways of creating and processing startrails. First we explain the easier method using a free program called StarStaX. Then we dig deeper with a more controlled and more professional method in Photoshop.
StarStaX free download: http://www.markus-enzweiler.de/StarStaX/StarStaX.html#download