What Is ISO in Photography?

Understanding ISO Settings

In photography, ISO refers to your camera sensor’s sensitivity to light. A lower ISO value means your camera is less sensitive, while a higher ISO increases sensitivity. This setting plays a vital role in controlling exposure and image brightness.

ISO and Exposure

ISO works alongside aperture and shutter speed to achieve the correct exposure for your photos. Raising the ISO allows you to shoot in low-light conditions without a flash, but it can introduce image noise. Finding the right balance helps maintain clarity while adapting to different lighting situations.

Choosing the Right ISO

Begin with the lowest possible ISO setting to ensure the cleanest image quality. Increase ISO only when necessary, such as in dimmer environments or when capturing fast-moving subjects. Remember, higher ISO enables brighter photos but can affect overall detail and color accuracy.