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1.67 Spin Photochromic Grey HMC Na gani ruwan tabarau
Ruwan tabarau masu canza launi, wanda kuma aka sani da "lenses masu ɗaukar hoto".Bisa ga ka'idar photochromatic tautometry reversible dauki, ruwan tabarau na iya yin duhu da sauri a ƙarƙashin haske da hasken ultraviolet, toshe haske mai ƙarfi da ɗaukar hasken ultraviolet, kuma yana nuna tsaka tsaki na haske mai gani.Komawa cikin duhu, zai iya hanzarta dawo da yanayin gaskiya mara launi, tabbatar da watsa ruwan tabarau.Sabili da haka, ruwan tabarau masu canza launi sun dace da amfani da gida da waje a lokaci guda don hana lalacewar hasken rana, hasken ultraviolet da haske ga idanu.
