Yes, the d4 is a wonderful high iso camera. Here in Western Oregon we get a lot of cloudy, dark and rainy days so my bird photography requires a long lens and a camera that can shoot up to around an iso of 3200 at times. I set my d4 for this type shooting and then concentrate entirely on the subjects which tend to move quite quickly especially in flight. I have had mine since last August and have no complaints, its a tool that just gets out of my way. What little bit of noise it produces at high iso's is easily removed in post surgery ha ha!!!! Have fun with your new camera, its a winner.