Depth of Field

DSCN2909, a photo by korie012 on Flickr.

Depth of field refers to the range of distance that appears sharp. This is a picture of a cover on my bed next to my window. To achieve this effect, the camera were f/5.0, ISO 800, and no flash during the evening. As a result, a distinct hill inmy cover is sharp will the rest remains out of focus. The larger the aperture value, smaller the f-stop, and the closer the focusing distance produce a shallower depth of field.