[full ct straw gradiant]
signature tint. organic CR39. optimal optical quality. abbe number 58. UV 400 protection. internal multilayer anti-reflective coating. anti-scratch. anti-dust. reduced eye fatigue. international standard ISO 12312-1:2013/Amd.1:2015. american national standard ANSI Z80.3-2018. australian/new zealand Standard AS/NZS 1067.1:2016