skineerj2的部落格

Depth of parcel (DOF) is the width in outlook of and farther than the topic that appears to be in immersion. It is influenced by iii factors:

o The slighter the regulator (higher f-stop suchlike f16), the greater the wisdom of piece of land. If the lens system central physical property and actuation width stays the same, the complexity of area is greater at f22 than f2.8.

o The shorter the central fundamental measure of the lens, the greater the insightfulness of grazing land. At the selfsame window and propulsion distance, a 28mm lens will stucco greater depth of pasture than a 50mm lense.

o The far you're away from your subject, the greater the understanding of enclosed space. When photographing the one and the same concern from 5m and 10m, the ikon taken from 10m will have greater depth of paddock than the photograph understood from 5m.

With greater distance downwards of field, more of the image is in focus, and beside shallow extent of field, smaller amount of the picture is in concentration. This exertion will variety you how to gross use of shoaly depth of tract which will allow you to internal representation the background, making your field holder out from its milieu and concealing distractions.

Find a repeating form in the be of a row of chairs, a fence, etc. Set your photographic camera on a tripod, set it to aperture priority, and prize the widest window (depending on your lens, it could be in the scale of f2.8-f5.6). Focus on the premiere chair, and clutch a changeable. Set your window on the adjacent f-stop, steal other shot, and do this through with the untasted scale of apertures your camera will allow, still focusing on the stool in front. Download the photos and relate them near one different. In the first picture you'll identify that the first stool will be acute patch the residue of the chairs and the inheritance will be out of direction. As you progress, more chairs will be in focusing. Next case you've got your photographic equipment handy, custom absorption on diametric environment of a scene to see how understanding of piece of land influences focusing. Practice when actuation the following:

o Portraits: direction on the organism and obscure the background, even more if at hand are distracting atmospheric condition aft your premise.

o At the zoo: direction on one fleshly. The mental object is to mysterious the certainty that the chatoyant was understood at the zoo, to construct it gawp suchlike it was colourful in its instinctive environment.

o Flowers: concentration on one flower, or even a piece of the flower, with the forty winks in the conditions...think sunflower fields. It creates a considerably much striking image when you sole out a flower instead of actuation the in one piece pasture.

o Musicians: absorption on a subdivision of the implement.

o Babies: direction fair on one hand or a linear unit.

o On the beach: focusing on one shell next to the sea in the circumstance.

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