Astro Photography Tool is an application for controlling image capture, but it's actually much more than that. It acts as a single interface for control of cameras, filter wheels, focusers, telescope mounts. camera rotators and more. It has an ever growing list of features and is actively developed by a talented astrophotographer and his wife.

Its list of features is too extensive to go in to detail here, so if you want to learn more please visit the APT website.