The exposure triangle is a concept in photography that refers to the relationship between aperture, shutter speed, and ISO. These three elements work together to determine the exposure of an image, which is the amount of light that reaches the camera’s sensor.
Aperture: Aperture refers to the size of the hole in the lens through which light enters the camera. A wider aperture (smaller f-number) will allow more light into the camera and create a shallow depth of field (background blur). A narrower aperture (larger f-number) will allow less light in and create a greater depth of field (everything in focus).
Shutter speed: Shutter speed refers to the length of time that the camera’s shutter is open. A faster shutter speed (1/1000th of a second or faster) will freeze action and is great for capturing fast-moving subjects. A slower shutter speed (1/30th of a second or slower) will create motion blur and is great for creating a sense of movement or for shooting in low light conditions.
ISO: ISO refers to the sensitivity of your camera’s sensor to light. A lower ISO will produce less noise (grain) in your images, but will require more light to expose the image properly. A higher ISO will produce more noise but will be able to capture images in lower light conditions.
The exposure triangle illustrates the relationship between these three elements and how they work together to determine the exposure of an image. When one element is changed, it affects the other two. For example, if you increase the aperture (narrower hole) to allow less light in, you will need to either increase the ISO or decrease the shutter speed to compensate and maintain the same exposure.
Mastering the exposure triangle is an important skill for photographers to learn, as it allows you to have more control over the exposure of your images and create the desired effect. With practice and experimentation, you will be able to use the exposure triangle to create beautiful, well-exposed images with your camera, whatever the brand.