Newer model DSLR’s have extreme ISO settings with little loss in quality. Don’t be afraid of going 1600 ISO and above. You’ll need it.
2~ Crank up the shutter speed
Keep your shutter speed as high as possible. It’s surprising how quickly performers move onstage. Especially at rock concerts. Try for a minimum of 1/250 sec. You’ll need high ISO and fast lenses to achieve this.
3~ Expose for the subject
Your meter is going want to over-expose your subject. The meter gets thrown off by the dark background combined with a spotlit subject. If you don’t under-expose you’ll get blocked-up highlights on the faces.
4~ Use the “Hail Mary”
When you shoot from the photo pit you’ll be beneath the performers. To get dynamic shots, hold your camera above your head with a wide angle lens on. Blast away!
5~ Carry two camera bodies
One body with a telephoto and one body with a wide angle. You won’t have time to change lenses. Usually you only get three songs so you have to use every second. Plus it’s too dark to see what you’re doing anyway.