I've been taking night shots of inanimate objects with shutter speeds of approx. 3 seconds and even longer sometimes. But I was wondering if there is a way to take night shots with a faster shutter speed? I'm wanting to take photos of people and I don't want them to have to sit COMPLETELY still for 4 seconds, which is impossible and will blur a bit. I'm also wanting to take rolling shots of cars at night too. I don't want to use flash, as there will be concerts here that I want to take pictures of that don't allow flash. Maybe there are lenses that permit me to do so? Thanks!