Hi,
You don’t need to create an expression, you can use The Wiggler window. To do that, you need to put some position keyframe in your camera position. Just put one position keyframe where you want your shake start and another where you want that stop, them select the 2 keyframes that you created and go in the the window menu/ The Wiggle. In the Wiggker menu, select spatial Path, smooth (if you want smooth moviment), frequency (how many frames per second you want it change) and Magnitude (how far you want the moviment). Apply that…
Now you can do it in the whole timeline…Just put other 2 keyframes and Apply… do how many time you want.
You have a Wiggle between the 2keyframes and a static moviment after, till the next wiggle start.
GUERA – EL MATADORE!