The depth of field is the distance between the camera and the subject. Controlling the depth of field is the first thing you have to do when working with a camera and the first element that needs to be carefully considered. Thanks to the control you can shallower the depth of field of unnecessary objects or maximize the depth of field of the Depth of field (DOF) is the term used to describe the size of the area in your image where objects appear acceptably sharp. The area in question is known as the field, and the size (in z-space) of that area is the depth of that field. DOF is governed by the angle at which light rays enter the lens. Focus distance vs Depth of Field; Focus distance DoF near limit DoF far limit Total DoF; 7.12ft (2.17m) 3.68ft (1.12m) 107ft (32.57m) 103.32ft (31.45m) 7.62ft (2.32m) Hyperfocal distance: 3.81ft (1.16m) ∞: ∞: 8.12ft (2.47m) 3.93ft (1.20m) ∞: ∞ To halve the depth of field you can do any of the following. 1. Halve the f-number (two stops larger opening) 2. Increase the lens focal length 1.4x. 3. Reduce the distance to the subject to 70% Vay Tiền Trả Góp 24 Tháng.

depth of field distance