Harry shouted, but as he looked back again two jets of green light flew past his left ear: Four Death Eaters had broken away from the circle and were pursuing them, aiming for Hagrid's broad back.
Zooming in with your weapon is different now too. Instead of just getting a closer view and aiming via a red dot or crosshair, now you're looking through a scope and moving a red targeting circle.
Aiming at the shortcomings of obtaining spherical and cubic panorama, the technique of tour into the cylindrical panorama based on vanishing circle is proposed in this paper.