I bought this lens and have really loved it. The only thing i'm confused about is it's supposed to be a faster lens, and it's supposed to be good in low light, which it is seperately. So in low light still pictures are amazing, and outside it is super fast. But when combining low light and speed, it doesn't seem to be as fast as my kit lens Nikon 50mm f/1.8D AF Nikkor Lens in low light. I know that it indoors the light is lower so I can't bump up my shutter speed as high as I can outdoors without bumping up my ISO, but I just thought it was weird that the kit lens on the same settings is a little faster than the new lens. Is this normal? I'm within my return period on the lens, so I'm wondering if I got a defective one or if this is supposed to happen. Also I just the Nikon D90!