I did some experiments in low light conditions for two concerts at Blue Note using the 18-105 zoom lens for Madeleine Peyroux's concert (I was a little bit far from the stage) and a combination of 18-105 and a prime 35mm at the Chick Corea concert, this time I was extremely close so the 35mm didn't work very well. I also did a few experiments with bulb mode at the brooklin bridge. Please don't take the concerts by my pictures. Both were great!