Left: Tamron 17-50mm f/2.8
Center: Canon 24-70mm f/2.8L
Right: Canon 24-85 f/3.5-4.5
Interestingly, the 24-70 is at maximum extension at its shortest focal length. Since the hood anchors to the main lens
barrel, a really deep hood can me used, as its depth is compensated by the front elements moving out at the widest angle.