This may be of more help, if focus is you issue. In the Heads Up Display under DISPLAY if you choose the option OBJECT DETAILS it will give you the distance to the object selected. Then select your camera and under the Maxwell Render you want to select Manual Focal Distance and put that distance in. Maxwell does one heck of a job with Depth of field. Too well sometimes. Just remember that Maxwell operates just like a camera. With the F stop and everything.