21. GET A DEEP FIELD OF FOCUS

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AS A PORTRAIT PHOTOGRAPHER, I spend most of my time shooting with wide open apertures to throw the backgrounds out of focus in my images. But in landscape photography, it’s common to do the opposite and shoot with tiny (more squinty) apertures to increase your depth of field and allow a deeper range of your image (front to back) to be in focus. This act of choosing a smaller aperture is known as “stopping down.” (Personally, I like to refer to it as “squinting down” because it provides a more helpful visual. Don’t you think?)

In order to “stop down” your aperture, you need to be able to control it. If you have a dSLR ...

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