I am shooting at a children party yesterday. It is in an indoor area with not so bright lights. I find that I have to pump up my ISO to 1600 and even with a F2.0 prime lens, my shutter speed sometimes fall below 1/100 in AV mode. It is quite difficult to shoot children moving around and most of the time I find that my subject is blur.
What will be recommended in situation like that? I do not wish to pump up my ISO further as I find that my pictures start to get grainy beyond that.