![]() The depth of field refers to how much of an image is actually sharp. It also affects the depth of field: Depth Of Field But it is commonly used, and certainly one that you should have in your arsenal.īut aperture doesn’t just affect the exposure. Note that there are other variables that also affect exposure (shutter speed and ISO), so aperture/f-stop isn’t the only way to brighten or darken a photo. That way, the photo will be brightened, and they’ll create well-exposed images. If the photo is looking too dark, they can widen the aperture by dialing in a lower f-stop. So photographers use different apertures to control the exposure of their images. While a narrower aperture lets in very little light, creating a darker photo. The f-stop that you choose directly affects the exposure (overall brightness) of your photos.īecause a wide aperture (such as one at f-stop 2.8) lets in a lot of light, creating a brighter photo. A low-numbered f-stop (for example, f/1.8) locks in a very wide aperture, which lets in a lot of light a high-numbered f-stop (for example, f/22) locks in a very narrow aperture, which lets in very little light. It produces a very shallow depth of field–so that pictures taken with an f-stop 2.8 have an intensely blurred background, like this: F-Stop ExplainedĪ camera’s f-stop corresponds to the size of a lens’s aperture–that is, the size of the hole in the lens that lets in light.į-stops are generally written like this: f/2.8, f/4, f/5.6, etc., and can span a range from around f/1.2 to f/32 (though there are some lenses that allow for even more extreme apertures).Īs you change the f-stop on your camera, the aperture changes with it. An f-stop of 2.8, also written as f/2.8, corresponds to a wide aperture.
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