We always want to shoot wider in a lot of situation, but we are lack of filter option previously … and now we have many options offer by various manufacturer .. now we have tested both Lee Filter SW150 series and HAIDA 150mm filter series … below are filters we tested so far 1. Lee … Continue reading 150mm Filter Solution for CANON 14 F2.8 L , NIKON 14-24 F2.8, Carl Zeiss 15mm, Tamron 15-30 F2.8, Samyang 14mm F2.8 …etc