Here is a link to a video of the new Humminbird 360 Imaging. It shows you in more detail as to what this amazing new technology can do. One setting they discuss is "Sweep" where they actually focus the unit to look at a desired direction as opposed to all around the boat. In the demo the set the area to look only ahead of the boat on a wide cone to the angler can target their casts according to where the structure is.
That man speaking is Mark Gibson, one of the great Humminbird product
managers at the factory in Alabama. I've had the pleasure of hangin'
out with him at sales meetings. These guys know their stuff which is
why Humminbird is a leader.