Saturday night some friends celebrated the publishing of a CD with a concert, so I took some picture (for myself, they had their official photographer). No flash, 150mm ISO3200 f/2.8 always, with shutter speeds around or slightly below the safe limit. Lighting, coloured, was mostly on the singer (was her CD), so I also took pictures of musicians but in even more difficult conditions. I think some picture may confirm a tendence of front focus at max focal length of my Sigma 50-150/2.8. The ones I prefer are here.