Athabasca Square Filter ARK II Hard GND8 (HGND 0.9) System 100

Athabasca ARK Hard GND filters are made of German Schott B270 optical glass. The use of Schott optical glass gives our square filters excellent properties of chemical resistance, high temperature resistance, and abrasion resistance. With an ultra-thin noble metal multi-coating, Athabasca square filters are with low reflection and able to avoid color differences while also being water, stain and scratch resistant.

Since these Athabasca ARK Hard GND filters has a clear differentiation between TOP and BOTTOM part, it is mainly used for landscape photography where the border between TOP and BOTTOM section are clear to be seen.