 The condition leads to “comet-tails” which streak across a picture, following moving highlights.The pictures from early Plumbicon cameras were susceptible to comet tails and blooming and, although these effects had not been a major concern in the previous generation of cameras, which employed vidicon or image orthicon tubes, they were an annoying feature of Plumbicon tubes.The problems arose when the beam current of a pick-up tube was insufficient to fully discharge the target in very bright areas of an image.