Aperture is often the go-to setting when adjusting depth of field. Aperture, or F-stop, refers to the size of the opening in the camera's lens when capturing a photograph. The photo above is properly exposed, and focus is drawn to the elephant partially as a result of adjusting the camera's aperture. Below lie an underexposed and overexposed photograph as a result of faulty aperture calibration to further illustrate the impact of aperture.
Tips
A higher aperture setting will deepen a photograph's depth of field, so more will be in focus. This will also darken the image.
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A lower aperture setting will make a photo's depth of field more shallow, so less will be in focus. This will also brighten the image.
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Aperture is typically adjusted on DSLR cameras by manually scrolling the shutter speed wheel in either direction while holding the aperture button.
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