We all hate unwanted camera image blur from camera shake or the type of unintentional motion blur that subdues the clarity of the main focal point of interest when snapping a moving subject, but there are times when the blur can be a very desirable artistic effect when intentionally playing with a shallower focal depth on a lens. It can help to more subtly draw attention to a focal point using the blur as a means of subtly cropping an image whilst at the same retaining the rest of the image t...