In this Adobe Photoshop tutorial, we’re going to look at an easy way to adjust the depth of field in a photo, keeping only a small portion of the image in focus while taking the rest of it out of focus. This is a great way to bring attention to a specific part of an image (someone’s face, for example), and the effect is similar to how things would look if we had shot the photo with a wide aperture. For best results, we’ll be using Photoshop’s Lens Blur filter to create this effect, which is available in Photoshop CS and later, which means you’ll need at least Photoshop CS to follow along with this tutorial. If you’re using Photoshop 7 or earlier, you can still achieve good results with Photoshop’s classic Gaussian Blur filter, but the Lens Blur filter is the filter of choice for this effect because it tries to mimic how an actual camera lens works, whereas the Gaussian Blur filter simply blurs everything out.