Depending on whether you have Vue4 or Vue4 Pro, the answer would not be exactly the same... in Vue4, when you choose some blur percentage, you'll see two planes appear in the camera cone (the lines that materialize the sight of cam in 3D views) This is the zone in focus. the more you augment the blur, the shorter the space between thee planes. when you edit the number in control, you move this 'zone box' along the cone. In Vue Pro there is a 'helper'(in form of a small squared dot) you can move more precisely and even link to the object of your choice that you want to be kept in focus.. in both cases I find it preferable to choose a long focal for camera... hope this helps a little Paul