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Iilensi ze-Optical ezi-1.56 ezisikiweyo eziluhlaza okwesibhakabhaka ezingwevu
Iilensi ezitshintsha imibala ziba mnyama xa ilanga likhanya. Xa ukukhanya kuphelile, kukhanya kwakhona. Oku kunokwenzeka kuba iikristale ze-silver halide ziyasebenza.
Phantsi kweemeko eziqhelekileyo, igcina iilensi zibonakala kakuhle. Xa zibekwe elangeni, isilivere ekwikristale iyahlukana, kwaye isilivere ekhululekileyo yenza ii-aggregates ezincinci ngaphakathi kwelensi. Ezi aggregates zesilivere zincinci aziqhelekanga, zidibanisa ii-clumps ezingakwaziyo ukudlulisa ukukhanya kodwa zifunxe, nto leyo eyenza ilensi ibe mnyama ngenxa yoko. Xa ukukhanya kuphantsi, ikristale iyatshintsha kwaye ilensi ibuyela kwimeko yayo eqaqambileyo.
