Superman

(Is he defying gravity??)

Depth of field is one of the ABC's of photography every avid photographer needs to know.

Depth of field is the zone of sharpest focus around the subject. It is the distance from the focus point where the image is sharp and everything else gets more blurred. The depth of field itself may be altered as required based on the kind of shot a photographer wants. The depth of field can be changed by the following factors:

* increasing f stops will increase depth of field as it reduces the aperture size and hence critical focussing is required. Effectively increasing f stop (reducing arperture size) will make everything to be in sharper focus

* Depth of field also depends on distance, farther the subject better the depth off field

* focal length. Shorter the focal length, deeper is the depth of field. Wide angle lenses produce more depth of field than telephoto lens for a subject at the same distance