In this video, we learn how to use and understand depth of field in photography. If you look at a photo, the depth is how deep the picture looks. You can change the depth by changing the aperture to make the depth of field look shorter or longer. The lighting can also change the depth of field and what you can see in the background. A big aperture will give you a large depth of field, with a small amount of light. If you want a big depth of field in a landscape, then you will use a maximum aperture. Use these tips to get a larger depth of field in your pictures!