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Iilensi ze-optical ze-1.56 eziGqityiweyo eziLuhlaza okwesibhakabhaka eziSikiweyo ezi-1.56
Iiglasi ezininzi zinemijelo emifutshane kunye nemijelo emide. Ukukhetha itshaneli kubalulekile. Ngokubanzi, siqala ngokuqwalasela ukukhetha itshaneli emfutshane, kuba itshaneli emfutshane iya kuba nembono enkulu, ehambelana nendlela yokuphila yabantu abasoloko bejonga iifowuni zabo eziphathwayo. Umahluko phakathi kwamehlo mkhulu kakhulu, amehlo abantu abangakwaziyo ukujikeleza aphantsi, afanelekile nakwiitshaneli ezimfutshane. Ukuba umthengi unxibe i-multi-focus okokuqala, unesidingo esiphakathi somgama, kwaye i-Add iphezulu kakhulu, ngoko itshaneli ende inokuqwalaselwa.
