Actually your perspective doesn't change. You can't magically see something with a wide angle lens that you don't see with a telephoto, not counting the stuff that just falls out of frame.

Consider this setup (setup in 3D Studio with a camera and focal lengths):

The box at the bottom is the camera

Now this picture is taken using a 85mm lens
This one is made using a 24mm lens:

Now if I upscale that to match the size of the 85mm shot:

You see they're are exactly the same. Light doesn't not bend around corners just because you change your lens. Using a wideangle lens just lets you put more into the frame.

What is a friend? A single soul dwelling in two bodies. - Aristotle
-= Glass Eye Photography =- -= My Rendo Gallery =-