Render out of bounds for more reflection

Hello everyone,

I’m wondering if i can get my camera render out of bounds just a little so that i can get the angled reflection on reflective materials just a little wider. Also would be nice if i can make the angled reflection fade out a little more.

I have been looking for this for a while but I cant find any post like this that has an answer or maybe I am searching with the wrong key words.
Sorry if there already is a post like this with an answer on how to do this.

I hope someone can help me with this.

Thank you in advance!