F stop explained1/5/2024 ![]() There are actually three components of exposure in photography: your camera lets in light through a circular opening (#1- your aperture), for a certain amount of time (#2- your shutter speed). Once you've read this post, you can read this post to understand how f-stops affect depth of field. Here's what this post will cover in more detail. Whew! That's a lot to think about in just one minute. A narrow aperture gives you more depth of field, meaning you'll have more in focus further away from your subject, and the background details will stay sharp. A wider aperture has a shallower area of focus around your subject, giving you a blurrier background. Of course, there are plenty of sizes in between these extremes, since this element will adjust incrementally depending on how much light you have.Īside from making your image brighter or darker, this setting also has a creative consequence: aperture controls the depth of field, or how much is in focus compared to your focus point.Ĭhanging your f-stop gives you the ability to either blur out the background or keep all the details in sharp focus, depending on your creative intention. So wide/large apertures have low f-numbers like f/1.8, f/2, or f/4 and small/narrow apertures have higher f-numbers like f/11, f/16, or f/22. The key to understanding f/stops is remembering that f-stops move counter-intuitively because they are written as a fraction. Smaller apertures let in less light to your image, similar to how a small window or porthole would make the room feel darker.Īperture is measured in terms of f/numbers or f/stops. Aperture is a lot like a window - a big aperture lets in lots of light to your image, the same way a large window makes the room feel brighter. On a camera, the aperture is a hole with a variable size that lets light through your lens and into your camera sensor. Got only a minute? Here's a quick summary:Īperture is one of the three elements of exposure that create an image (along with shutter speed and ISO) and affect the overall brightness of your image. This post has examples especially for moms who are beginners. If you want help with learning the fundamentals of photography for your DSLR camera, then I've got you covered. It may seem tricky at first, but this post will help you understand aperture, f-stops, and f/numbers, as well as how they work and why they matter! Aperture is one element of exposure that controls image brightness.
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