How to make a camera face exactly downwards at the centre point? New to using blender, and have an image as a plane in the centre point. I'm trying to set a camera up to face perpendicular to it which i preume is doable by resetting position to centre, which I've done, and then changing the angle, but I can't find any shortcut to press to face it downwards, and can't find any input boxes to manually set the rotation by value. Any help?
Alt+R reset to the default orientation, which is downward.