What adjustment can you make to increase the amount of light in your photos?

Increasing the aperture is an effective way to allow more light into the camera, thereby brightening your photos. The aperture is the opening in the lens through which light passes. When you increase the aperture (using a lower f-stop number, such as from f/8 to f/4), you effectively make the opening larger. This larger opening allows more light to hit the camera sensor, resulting in a brighter image.

In photography, it's important to balance exposure, and adjusting the aperture is one of the three fundamental components of exposure, along with shutter speed and ISO. A wider aperture can also create a shallower depth of field, which can be used creatively to emphasize the subject by blurring the background.

While changing the ISO setting can also brighten an image, it introduces noise at higher levels, which can degrade image quality. Decreasing the aperture would reduce the light entering the camera, leading to darker images, and increasing shutter speed reduces the amount of time light is allowed in, also resulting in darker images.