Ko te marama o te panui marama te penapena hiko, te kanapa teitei, te kore mercury, kaore he infrared, kaore he ultraviolet, kaore he awangawanga hiko, kaore he paanga wera, kaore he rauropi, kaore he ahuatanga stroboscopic.He marama te taumaha o nga rama, kua mau, kua whakatarewahia, he ngawari ki te whakauru.