the problem is that your are previewing using the Resolution gate. When using the resolution gate the camera overscan get set at 1.3 which Vray ignores. So that why your render looks different (as it has an overscan of 1).
the problem is that your are previewing using the Resolution gate. When using the resolution gate the camera overscan get set at 1.3 which Vray ignores. So that why your render looks different (as it has an overscan of 1).