Kalmar “eyecup” tana nufin wani ɗan ƙaramin abu mai siffar kofi, yawanci ana yin shi da gilashi ko robobi, wanda aka kera shi don dacewa da ido don kare shi daga harzuka ko shafa magani. Ido na iya zama ƙaramar na'ura da ake amfani da ita wajen daukar hoto don taimakawa daidaita kyamarar da kuma toshe haske yayin ɗaukar hoto ta wurin mai duba.
