Camera lens settings can be adjusted by clicking on the lens icon in the shoot screen. These enable you to control the Field of View, the Depth of Field and the Exposure of individual shots.
N.B Settings apply per Control Point. Focus is automatic in Preview.
The Force no Focus button enables you to de-focus the shot for pull-focus effects.
N.B You will need to adjust the Depth of Field to create the effect
Changing the Depth of Field enables you to adjust the plane of focus.
Adjust the Field of View to simulate a wider or longer lens.