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If so, you may want to use a lower aperture (f/1.8). The lower the number, the more shallow the depth of field. Less things will be in focus, and the setting will create a dynamic-looking shot.

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But, aperture doesn’t only matter in physics. It affects how your video looks and even how the tone of your video feels. So, how does this light-controlling hole affect your videos? Let’s dive in and learn more!

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Low f numberchart

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A lower aperture means more light is entering the camera, which is better for low-light scenarios. Plus, lower apertures create a shallow depth of field, making the background blurry. You want to use a low aperture when you want a more dynamic shot. For example, we use low apertures like (f/1.8) in our Wistia studio to create that cinematic look.

To increase or decrease the aperture, simply adjust the camera’s circular jog wheel. If all else fails, check your camera’s manual!

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Most people will probably say lower apertures are the best. That’s because, in a lot of cases, more expensive lenses typically have lower f-stops (e.g., 1.2, 1.4, 3, etc) and a more expensive lens can sometimes equate to better quality. For example, prime lenses (i.e., those with a fixed focal length), like a 24mm, 35mm, or 50mm, can have apertures as low as 1.2 and can create some dynamic looking shots.

Traditionally, a lens that goes below an f/4 is classified as a “fast lens,” which refers to the maximum aperture diameter (or f-stop).

You can use many different apertures for recording quality video. If you’re familiar with photography, aperture for video follows the same rules you’re already familiar with.

You might be wondering why f-stops are displayed using decimals (e.g., 1.4, 2.8, and more). Well, that’s because they’re a fraction that stands for the ratio of the focal length of a lens to the diameter of the entrance pupil.

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Aperture is one of the three main adjustments for exposure/brightness on your camera, with the others being shutter speed and ISO. Setting the right aperture also depends on what the shutter speed and ISO are set at; they all work together to create one balanced-looking shot.

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Some zoom lenses have a fixed aperture throughout the range of the zoom. These lenses include a 24–70mm f/2.8, a 24–105mm f/4.0, and a 70–200mm f/2.8. Some newer lenses even have a lower aperture, like the 28–70mm f/2.0. These lenses tend to be more expensive than zoom lenses with a variable aperture. An example of a lens with a variable aperture is an 18–55mm f/3.5–5.6. This means that as you zoom in, the aperture gets smaller, and the number gets bigger.

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The aperture on your camera is a hole in the lens that controls the amount of light that passes through the camera lens to fall on the sensor.

If you’re still fuzzy on what setting to pick, go ahead and try a couple of shots! Take a couple shots at one f-stop, and if you don’t like that look, adjust accordingly.

Something to keep in mind is that the aperture on your camera not only affects the brightness or exposure of your image, but it affects depth of field, too.

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Simply put, the f-stop number is tied to aperture. The higher the f-stop number, the smaller the aperture, which means less light enters the camera. The lower the f-stop number, the larger the aperture, and the more light enters the camera.

Basically, f-stops are a quantitative measure of the lens speed and are often specific to what type of lens you’re using. For example, some lenses don’t go below an f/4 and others can go down to an f/1.2.

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Now, if you’re shooting a closeup of something extremely cute and still, like a closeup of a sleeping dog, then you’ll want to crank that aperture all the way down. With a lower aperture, you’ll be able to have a dynamic depth of field in your shot.

The beauty of DSLRs is that you can play around with your aperture and instantly see the results to find just the right setting for what you’re trying to achieve.

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If your background is messy or busy, it can be distracting for the viewer and pull their attention away from the subject of your shot. Use a low aperture to blur your background! Stick to as low of an aperture as possible to focus on your subject and keep the background blurry.

f-number calculator

Let’s start at the very beginning: What is aperture? Great question! Aperture is often referenced in optics — a branch of physics focused on the study of light. In optics, aperture is the name for a hole through which light can travel.

The aperture setting is typically identified by an f-number, often called an f-stop, which is a ratio comparing the focal length to the effective aperture diameter.

There are benefits to having either a higher aperture or a lower aperture. It all depends on what kind of look you are going for — because high and low apertures create distinct looks that help you dial in that “sweet spot” for your style.

f-number formula

A small aperture has a higher f-stop, so less light will come through the lens to reach the sensor (larger number = smaller hole).

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At the end of the day, when it comes to aperture, the main thing to remember is that it controls how much light comes into your shot — and you want to use that knowledge to choose the best aperture based on the context of what you’re shooting.

Think of it like your eyes: When you squint, less light comes through to the pupil, and when the eye is opened fully, all of the light enters.

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Finally, with autofocus tracking recently taking over the DSLR game, you don’t have to worry too much about your shot being in focus, but these rules above still apply when properly exposing for a shot.

A higher aperture (e.g., f/16) means less light is entering the camera. This setting is better for when you want everything in your shot to be in focus — like when you’re shooting a group shot or a landscape.

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If you’re shooting landscape, you may want to use a higher aperture (f/16). With a higher aperture, more things in the shot will be in focus.

Here are some examples: If your subject is running or moving a lot, then you probably want a higher aperture where more of the scene is going to be in focus, so your subject doesn’t become blurry.

Here’s what we mean by that: Each lens is different and has different characteristics. So, depending on whether you use a macro, zoom, prime, or telephoto, one setting is going to look different across each one of these lenses.

When it comes to physically using aperture on your camera, adjusting your aperture should be simple! Every camera has an f-stop number digitally displayed on an LCD screen, or on the dialog box on the top of the camera.