Camera in 3D view somehow not working I just finished an animation project, and suddenly my camera is looking really weird. 

The camera has 2 child of modifiers, to two empties (circle and sphere)
I haven't animated the camera at all, only animated the empties

I believe I have pressed a shortcut (I'm a noob and I dont know all of them).
I've searched around the internet but unfortunately cant find a solution, I dont even know what this is called.
hit STRG-ALT-NUMPAD0 to set the selected object as the active camera. Currently you have an object as the active camera. The small triangle above the camera tells you whether it is active or not (filled triangle = active, triangle with just contours = currently not active)