 In bright daylight, a "slow film" (low-ISO film), or low-ISO digital camera sensor sensitivity setting (typically ISO 100, or perhaps 200), is generally preferred, allowing maximum precision and evenness of image.However, if there is movement in the scene, and the scene is in lower light—as with cloudy days, twilight, night, or in shaded areas—a higher ISO (up to the limits of the film or camera sensor, depending upon the shortage of light) may be desirable, to ensure that fast shutter speeds can be used to "freeze" the motion.Normally, landscape photography—being focused primarily on natural beauty—tends to be done with only naturally occurring ambient light.