I have the following problem:
I created a composition with an Image (Logo) that is highlighted by lightrays and reflections.
It looks great - than i decided, that it would even look better if it slowly zooms in.
But now, after i scaled the composition down, the light rays don't reach to the edge of the screen no more.
What can i do?
You need to do your animation on your logo, then precompose it (moving all attributes). You would then apply all of your effects work on your your new precomp, not the logo itself. Read more on Precomposing here.