Depth the field explained: Depth the field makes images appear sharp and in focus. There is a point focus in every picture. The sharp zone will vary from photo to photo depending on different factors. Images that are sharp from front to back have a deep depth the field. Whether the image has a shallow depth of field or a deep depth of field it can make a huge difference. There are three main factors that determine depth of field are Aperture, Distance between your lens and your subject ,and focal length of the lens. Large aperture equals a Small f-number which equals Shallow.

If you want to photograph a landscape and you want a deep depth of field, you have to set your aperture to f/11 .So the closer your subject is to the camera, the shallower your depth of field becomes. The longer your focal length, the shallower the depth of field. How to approach depth the field. First you set your camera to aperture priority or manual mode. Then you have to determine whether you want a deep or narrow depth of field.Next you adjust your aperture, distance to subject, and focal length

AV, IOS 800, 1/125/ f16,18mm

AV, ISO 800, 1/500, f5.6, 55mm

ISO 180, 1/500, f5.6, 200mm

F16, 1/60, 28mm