About the Equipment
Astrophotography can involve a rather complex set of equipment, which fall into a few basic categories:
Mounts - A solid, accurate equatorial mount is vital for successful long exposure astrophotography.
Scopes - It's not required to start out, but most people will naturally move up to a telescope at some point
Cameras - The one item you can't do this without
Lenses - If you don't use a telescope, you need some of these
Film - What works and what doesn't
Image Processing - If the lab hasn't ruined your work
Gadgets - And other accessories