>>2681611You can start with your DSLR, kit lens and a tripod to take milky way shots, or bright objects like M42.
Then if you want to go further, buy a scope. There a 3 types of telescopes: refractors (with lenses, expensive, but better resolution), reflectors (with mirrors, cheaper, bigger apertures, good for nebulae) and cassegrains (hybrid, with mirror and lenses, compact scopes with high magnification, good for planets) You can attach them to your DSLR with a T2 ring. Or better, buy a dedicated CCD camera for astrophotography.
You need an equatorial mount to track the motion of the night sky, because you want to take long exposures and the stars are moving fast. The mounts are expensive, often more expensive than your first scope, but you cant do anything without them.
With a basic scope and mount (~1200€ for both) you can already take great images. Thats the setup I have atm, pic related. If you want to go further than this, there are a lot of things you can do (autoguiding, stacking images, using Ha or oxygen filters, etc).