I used to strobe it but it was just too much hassle getting set up and breaking down and so forth before the show started. So now I'm back to just the house lights. It's pretty hot in the middle and dark on the edges; the bass players tend to get lost. I'd like to experiment with some sort of ovoid gradient mask to fix that some, but I just don't have time.
This was a dress rehearsal. I either shoot then or during warmups before the actual performance, before they let the audience in. I just wander around the stage, clicking away. What the conductor wants, the conductor gets. ;-)
Most of the onstage shots are with the 70-200 f2.8, some with the 24-105, both on 1-series (a Mark IV and IIn). The long shot is from the balcony of course, with the 24-105 on the Mark IV, live view on a tripod with geared head to get it lined up right.
There's EXIF info under the individual shots on my website. I shoot RAW and do a little tweaking as necessary in the conversion.
Nill