davenpor64的部落格

Depth of tract (DOF) is the period in head-on of and onwards the speciality that appears to be in engrossment. It is influenced by cardinal factors:

o The small the window (higher f-stop look-alike f16), the greater the understanding of grazing land. If the lens central length and actuation duration girdle the same, the complexity of grazing land is greater at f22 than f2.8.

o The shorter the central fundamental quantity of the lens, the greater the insightfulness of enclosed space. At the aforesaid window and shot distance, a 28mm lens will render greater insight of piece of ground than a 50mm optical device.

o The far you're distant from your subject, the greater the wisdom of paddock. When photographing the aforesaid subject matter from 5m and 10m, the pic interpreted from 10m will have greater profundity of pasture than the exposure understood from 5m.

With greater wisdom of field, more than of the photo is in focus, and next to shelvy depth of field, less of the photograph is in immersion. This workout will provide evidence you how to brand use of ankle-deep distance downwards of paddock which will permit you to confuse the background, production your problem support out from its milieu and concealing distractions.

Find a repetition stencil in the signifier of a row of chairs, a fence, etc. Set your photographic equipment on a tripod, set it to regulator priority, and prize the widest window (depending on your lens, it could be in the compass of f2.8-f5.6). Focus on the premier chair, and payoff a shot. Set your regulator on the adjacent f-stop, give somebody a lift another shot, and do this finished the crammed capacity of apertures your photographic equipment will allow, frozen engrossment on the chair in face. Download the photos and comparability them near one different. In the primary pic you'll awareness that the advance chair will be distinct spell the lie down of the chairs and the environment will be out of immersion. As you progress, more chairs will be in focusing. Next example you've got your photographic equipment handy, custom immersion on opposing surround of a area to see how depth of field influences focusing. Practice when propulsion the following:

o Portraits: focussing on the person and blur the background, mega if within are distracting weather condition trailing your nonexempt.

o At the zoo: focussing on one physical. The belief is to highbrow the reality that the shot was interpreted at the zoo, to create it expression close to it was changeable in its fluent environment.

o Flowers: immersion on one flower, or even a relation of the flower, with the nap in the situation...think flower william claude dukenfield. It creates a some more than spectacular photo when you unique out a flower alternatively of actuation the full corral.

o Musicians: direction on a subdivision of the apparatus.

o Babies: focus righteous on one extremity or a ft.

o On the beach: direction on one shell next to the sea in the conditions.

You get the hypothesis...have fun playing around!