A shallow depth of field is the small or narrow area in an image that is in focus. Often, the background is blurred while only the subject stays in focus. The further the subject is from the background dramatically decreases the depth of field as it gives the image some depth. The distance between subjects will also give this effect "Depth of field is the range of distance within which all objects will be in acceptable sharp focus. It is an area in front of and behind the principle point of focus that will also be in acceptable focus. Due to similarity in name and nature, depth of field (DOF) and depth of focus are commonly confused concepts. To simplify the definitions, DOF concerns the image quality of a stationary lens as an object is repositioned, whereas depth of focus concerns a stationary object and a sensor's ability to maintain focus for different sensor positions, including tilt. Depth of Field is broken up into three layers (or region); Near, Far, and Focal Region. Each of these is processed separately and then later composited together to achieve the final image effect. Objects in the Near and Far layers are always fully blurred. They are blended with the non-blurred scene to achieve the final result. Depth of field is the area in which elements are acceptably in focus. Objects closer of further away from that area will be progressively blurry. You can also manually change the focus distance under the depth of field menu. When changing the focus distance, changing the F-Stop might also be needed to get the same amount of bokeh for the Adjust the Depth of Field > F Stop value to increase or decrease the amount of depth of field. Use a higher fStop value (for example, f-16, f-22, f-32) for a deeper depth of the field where more of the foreground and background is in focus. Use a smaller fStop value (for example, f-2.8, f-4 or f-5.6) for a shallower depth of field, where more DOFMaster Depth of Field Calculator(for Windows® operating systems) Use DOFMaster to print depth of field scales to take into the field. Rotate the dial to set the focus distance on the scale, and quickly read the near focus distance, far focus distance, and the hyperfocal distance. MEOp.

depth of field distance