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1.67 Spin Photochromic Gray HMC Optical lilense
Lilense tse fetolang 'mala, tse tsejoang hape e le "lilense tse utloang khanya". Ho ea ka molao-motheo oa karabelo e ka fetoloang ea tautometry ea photochromatic, lense e ka fifala ka potlako tlas'a khanya le mahlaseli a ultraviolet, ea thibela khanya e matla le ho monya khanya ea ultraviolet, 'me ea bontša ho monya khanya e bonahalang ka tsela e sa nke lehlakore. Ha e khutlela lefifing, e ka khutlisa boemo bo bonaletsang bo se nang 'mala kapele, ea netefatsa hore lense e fetisetsoa. Ka hona, lilense tse fetolang 'mala li loketse tšebeliso ea ka tlung le kantle ka nako e le 'ngoe ho thibela tšenyo ea khanya ea letsatsi, khanya ea ultraviolet le khanya e benyang mahlong.
