ARK II GND8(0.9)
(Reduced exposure grade:  3 stops  Material: Optical glass)

Athabasca ARK II GND8
Material:
German Schott optical glass
Coating:
Water repellent
Stain resistant
Scratch resistant
Nano coating
Double side anti-reflective film
Technology:
Low reflection and light reducing layer
Thickness:2mm
Installation methods: plug-in filter

There is huge light difference between up and down or left and right when taking photos, GND filter is used to darken the bright part and reduce the light difference. Then you can get more detailed and balanced image.
Athabasca ARK GND8 filter adopts German Schott optical glass, It is characterized by anti-impart, anti-corrosion and high temperature resistant. Athabasca II generation square filter adopts the multi-coating of thin noble metal coating. It is used to reduce the reflection and to decrease the color deviation. At the same time, it is water repellent, scratch and stain resistant.