— own display mounted on the lens body and powered by the camera battery. Usually this is a small black-and-white screen, which displays various working information — primarily data on the settings set. It is much more convenient to control the settings in this way than in the classical way, by marking on the swivel rings and other elements of the lens: all the data is collected in one place, and extended information can also be displayed on the screen. On the other hand, the display significantly affects the cost and dimensions of the lens, so it is used extremely rarely — in single models of high-end optics.
