b08cp

20*20cm Circular polarized filters is made of top grade glass with high transmittance and resistance 20*20cm Circular polarized filters, top grade glass with high transmittance and resistance, imported circular polarized lens inside.1) optics parameter- polarized efficiency 99.9%, transmittance >42%, compensation 125nm/138nm2) sizes available: 15 x 15cm, 20 x 20cm, 25 x 25cm, 30 x 30 cm, we also ...