beside Lee Filter and HAIDA filters, now we also have another top quality square filter systems NiSi We also will start sharing more pictures by NiSi filter solutions and it consist 1. 100mm System – for all common lens with screw threw up to 82mm 2. 150mm System – for lens without screw thread or … Continue reading NiSi Square Filters System 100mm, 150mm and 180mm are available now