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1.67 Xiav hlais Spin Photochromic Grey HMC Optical lo ntsiab muag
lens zoo, cov khoom yog qhov tseem ceeb
Cov khoom siv ntawm ob lub lo ntsiab muag ua lub luag haujlwm txiav txim siab hauv lawv qhov kev xa tawm, kev ua haujlwm ntev thiab tus lej Abbe (tus qauv zaj sawv ntawm qhov chaw ntawm lub lens). Nws tuaj yeem ua tiav kev tshawb fawb tob thiab txhim kho ntawm cov ntaub ntawv, nrog kev tswj tau zoo thiab kev ua haujlwm zoo heev.
zaj duab xis txheej, ua rau lub lens yooj yim hnav
Lub lens zaj duab xis zoo tuaj yeem muab lub lens ua tau zoo dua, tsis yog qhov kev ua haujlwm kho qhov muag xws li kev xa tawm tau zoo heev, nws qhov hardness, hnav tsis kam, durability yuav zoo heev.
