You do NOT zoom as you shoot, so forget zooming. There is a big difference between "grainy" and "blurry". - Grainy is camera/ISO related. - Blurry is either camera movement from you, or lens is not in focus. What is the ISO, and shutter speed that is recorded for the pix? - If the ISO is too high, you get noise. - If the shutter speed is too low, you get camera movement/shake. What focus option are you using? Are you CERTAIN that the selected AF point is on what you want to focus on. Do this test: Set the zoom ring, then don't touch it. Set the camera onto a SOLID surface, so you don't move the camera. Take the pix by pressing SLOWLY on the shutter button.