Which aspect of a camera affects image brightness?

The correct choice is that both ISO settings and shutter speed affect image brightness. This is because each of these elements plays a crucial role in determining how much light reaches the camera sensor, which directly influences the exposure of an image.

ISO settings refer to the sensitivity of the camera's sensor to light. A higher ISO setting means the sensor is more sensitive, allowing for brighter images in low-light conditions. However, increasing the ISO can also introduce noise into the image, which can reduce overall image quality.

Shutter speed, on the other hand, is the duration for which the camera's shutter remains open to let light in. A faster shutter speed allows less light to hit the sensor, resulting in a darker image, whereas a slower shutter speed permits more light, creating a brighter image. The choice of shutter speed can also affect motion blur in the image.

Together, ISO and shutter speed work in conjunction with aperture (the opening of the lens) to achieve proper exposure and image brightness. While aperture is not the only factor affecting brightness, it complements both ISO and shutter speed, making it essential to understand how all three interact for optimal image results.

In summary, since both ISO settings and shutter speed are integral to controlling the brightness of an image, the