Monday, July 23, 2012
Hyper Focal Setting For More Depth of Field
Use this technique to create depth in your images, while maintaining the sharpness of your foreground to background elements
Depth in a photograph is conveyed by a spatial relationship between foreground, midground and background elements whereas those nearest the lens are emphasized while the rest of the composition recedes into the distance. The foreground object becomes exaggerated in its size and makes it a dominant feature. The viewer is led through succeeding layers in the rest of the photo. This technique is commonly used in landscape photography to create a three dimensional feel.
To produce this effect, wide angle lenses are used because of their inherent ability to produce more depth of field. Find a scene that has a strong foreground element. Put the lens close to it. Compose the picture so the foreground element is exaggerated and the rest of the composition recedes into the distance. Verticals can be employed equally as well as horizontals.
Many photographers set the lens to infinity as it makes sense in that the background subject is often very far away. By doing this, much depth of field is wasted as opposed to setting the lens to the hyper focal setting. For instance, using the above technique, a 28mm at ƒ22 set to the hyper focal distance can net a range of focus from 2.35 feet to infinity. With the same settings with the lens set to infinity, a considerable amount of foreground material would be out of focus. Go out and experiment to see the effect of shooting a scene both ways. If your thing is foreground to background sharpness and you're not using the hyper focal technique, you'll wonder why you never did it sooner.
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