Description
Glass filters are made with Schott Water White Optical glass
Color and effects are digitally applied to a wafer thin mebrane layered between two pieces of ground glass. This process is called A.C.T(Absorption Cell Technology)
All Formatt filters are polished to within 2 microns of optical flatness
Formatt filters are 1mm thick and edge framed. All filters come with a individual wave deviation chart to certify quality.
All filters come with a 10 year guarantee against fading or color shift.