1 To better blur the background of your photograph you want to create enough distance between the camera and the subject so that you can zoom on your camera to better focus it on your foreground. 2  In addition, the further your subject is from the background, the easier it will be to get a nice blurred look.mploy Photoshop’s Blur tool to blur the background of a photograph. Select the raindrop looking icon from the toolbar, this is the blur tool. 1  At the top of your screen will see options for brush size, and strength of your stroke.