What is an eternal lens?

Does the subject want to ask "what does the eternal lens mean?" Pictures forever. Eternity means eternity, which means that the spirit and the world will exist forever and remain unchanged, symbolizing people's good wishes for life and the world. On the contrary, it is instantaneous and short. In film and television, the lens has two fingers, one refers to the optical components used by film cameras and projectors to produce images, the other refers to the continuous picture taken from power on to power off, or the fragment between two editing points, also known as the lens.