Aperture in photography, in its most basic form, is described as the opening of the lens to give to your camera the amount of light it needs. The effective use of aperture is what allows a certain effect to be achieved with images. This functionality is the most important part of the exposure triangle along with ISO and shutter speed. 

Large vs. small aperture

This might be a little bit confusing for beginners, but large numbers represent small aperture, and small numbers represent wide aperture. It can be misleading because it is the exact opposite. Pay attention to this reverse if you want to take the pictures correctly. There’s a catch. If you are in a dark environment, use a large aperture, and vice versa. If the light is enough to take photos, use a small one. It is as simple as it looks.

Using effects

Bokeh

The word “bokeh” is originally from the Japanese language and means “blur”. This effect, known as bokeh, is one of the most popular subjects in photography. Why is that? Because it is alluring and offers a different perspective to pictures. Bokeh is when the background of an image is clearly out-of-focus compared to the foreground of the image. It focuses on a specific part of the image and blurs everything around it.

Exposure

Speaking of effects, aperture gives the brightness to your images. It is also called exposure, and it modifies the amount of light that your camera reaches. If you want your pictures to be brighter, use a wide aperture. But if you’re going to take a darker photo, use a small aperture. Not complicated at all.

Depth of field

Another effect that can be mastered with aperture is depth of field. That means you can have your background completely out-of-focus. If you want to focus on your subject and have a blurred background, use a wide aperture. That’s how depth of field works.

In Photography Life is important to understand what aperture is and how to use it. It is one of the basic functionalities of a camera that a beginner or a professional photographer should know.