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1.59 PC Progressive Photochromic Gray HMC Optical arotahi
Ko te arotahi huri-tae e hangai ana ki te mātāpono o te tautometry photochromatic ka taea te whakapouri wawe i raro i te mārama kaha me te mārama ultraviolet, ka ārai i te mārama kaha me te mimiti i te mārama ultraviolet; i muri i te hokinga ki te pōuri, ka tere te whakahoki mai o te arotahi i te āhua kore-tae me te mārama hei whakarite i te whakawhiti o te arotahi. Nō reira, he tino pai te arotahi huri-tae mō te whakamahinga o roto, o waho hoki, inā koa i te taiao o waho hei ārai i te mārama kaha, te ultraviolet, te kanapa me ētahi atu kino ki ngā kanohi, he pai mō waho, he nui ake te aro o ngā kanohi ki te whakaohooho mārama, ka whakaiti i te ngenge o te kanohi. I muri i te mau i ngā mōhiti huri-tae, ka kite koe i te āhua maori me te whakamarie i raro i te mārama kaha, ka karo i ngā nekehanga utu pēnei i te kamo, ka whakaiti i te ngenge o ngā kanohi me ngā uaua huri noa i ngā kanohi.
