Shallow depth of field is a photographic and cinematographic technique that creates a small depth of field, where one plane of the scene is in focus while the rest is out of focus. This technique is typically used to emphasize one part of the image over another, and it is often used in portrait, nature, and travel photography. Shallow depth of field is achieved by using a wide aperture, which allows more light to enter the lens and creates a blurred background. Increasing the distance between the camera, the subject, and the background can also create a shallow depth of field effect. Shallow depth of field is the opposite of deep focus, where the entire image is in focus. This technique can be used to simplify a busy scene, remove distractions, and create a clean backdrop. Shallow depth of field has become more popular in recent years, and it is often used to create a cinematic look in low-budget films.