Foundations of Photography: How To Use Depth Of Field


show more Depth of field provides you with in-depth training on Photography. Taught by Ben Long as part of the Foundations of Photography: Exposure show less
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Depth of field

So, you can use both shutter speed and aperture to change the amount of light that strikes the sensor. But why would you choose one over the other? As you have seen, in addition to controlling light, when you change shutter speed, you also change how much moving objects in a scene are frozen or blurred. When you change aperture, in addition to controlling brightness, you also get a change in depth of field. Depth of field is a measure of how much of your scene is in focus. Now, you might think, don't I want all of my scene to be in focus? Not necessarily.

By shortening depth of field, you can blur out the background behind your image. Or by deepening your depth of field, you can ensure that everything in your image is in focus. That's something even your eye can't do. One of your most important goals as a photographer is to ensure that the viewer knows how to read your image. And at the simplest level, that means you want to be certain that they know what the subject of your im...

Depth of field
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Depth of field provides you with in-depth training on Photography. Taught by Ben Long as part of the Foundations of Photography: Exposure

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