American Falls Bridal Veil Falls

A camera’s ISO number dictates its sensitivity to light. A higher ISO (a “fast” ISO) will make your camera more light-sensitive, but will add more grain (or “noise”) to your photo. If your camera allows you to adjust ISO, set it low (somewhere around 50 or 100) for sharp detail in low-light. This setting will increase exposure time slightly, but will produce a much richer photo.