One of the oldest 35mm full frame SLR systems. Initially, it was a line of manual focus film cameras and lenses, but since 1986 it includes autofocus models, and since 2007 - digital cameras. Unlike Canon, which abandoned the FD mount in favor of a fully electronic autofocus EF mount, Nikon chose not to create a new mount for autofocus lenses, but go along the path of modifying the existing one. However, most Nikkor lenses (both the latest autofocus and older manual focus models) have good compatibility with Nikon full-frame digital SLR cameras. The lens lineup is extensive and includes both amateur and professional models, allowing you to shoot a very wide range of subjects.