The Canon EF 200mm f/2 L IS USM Lens is great for capturing stage performances. The wide aperture allows action-stopping shutter speeds in low light using reasonably low ISO settings. And, since the photographer seldom has control over the background at these events, the shallow depth of field allows the background distractions to melt away.
Camera and Lens Settings
200mm f/2.0 1/200s ISO 500 5616 x 3744px