Depth of field is frequently used in photography and cinematography to direct the viewer's attention within the scene, and to give a better sense of depth within a scene. In this chapter, I refer to the area beyond this focal range as the background, the area in front of this range as the foreground, and the area in focus as the midground. How to Make a 3D Shallow Depth of Field in After Effects. Step 1: Prepare your Clip (s) Step 2: Setting up your Camera. Step 3: Changing your Camera View. Step 4: Creating a 3D Clip. Step 5: Creating a real Depth of Field. Step 6: Keyframing your Clip. Step 7: Adding a Background (Optional) The idea is for the camera to mimic the eye's ability to focus at only a certain distance (i.e., you can't see far away clearly if you're looking at something close, and vice versa). Learn how to make your Fusion videos look great with this fast a easy way to add depth of field. This will be using the Depth Node.Keyboard that I use. Speed 7. Check the figures. Or you can switch to manual focus and use an app like Field Tools to work out the hyperfocal distance. This places distant objects at the far limit of depth of field, and so maximises the depth of field. At a focal length of 55mm and aperture of f/16, our app says we need to focus at 9.5m…. Depth of field covers the subject and an area slightly in front and behind the subject, so experiment with positioning the focal point. 5. Shoot and review the image to check that the depth of field is adequate. If not, use a smaller aperture, a shorter focal length lens, or move further away from the subject. To achieve a shallow depth of field, you need to use a large aperture, such as f/2.8, f/4, or f/5.6. You also need to consider the distance between the camera and the subject, and the focal length Select the area of focus. From the Edit tab, select the area that you want to keep in focus. For information about selecting image areas, see Creating selections. 3. Adjust depth of field. Click Adjust > Depth of Field . The Depth of Field dialog box appears. 4. Adjust the amount of blur. 1xIU.