A conventional camera captures light much like the human eye, in three primary colors – red, green, and blue. A multispectral camera, used on drones, can capture images in several additional, precisely defined color bands that are invisible to humans. These bands include, for example, near-infrared light, which healthy plants strongly reflect. The data acquired from the individual bands are then software-assembled into a single image. The result is specialized maps that reveal information undetectable from a regular photograph. In agriculture, for instance, it can be used to assess crop health, identify areas with nutrient or water deficiency, or more precisely determine the ripeness of crops.