★Super slim 36 Layer Nano Multi-Resistant-Coated CPL Filter
★Janpan 99% polarizing film
★Germany SCHOTT glass, thickness 2.3±0.1, Planeness 5/2*0.16, transmission: 380-680nm Tmax ≤41%, extinction ratio: 3000:1
★Aviation aluminum frame, total thickness:7.2mm, frame net thickness:5.2mm
★ Double-faced 36 layer HD nano multi coating, waterproof, oil proof, scratch resistant and mildew resistance