Dichroic colour coatings are an excellent alternative to dyed plastics due to their absorbing nature. HHV provdes a variety of colour correcting filters by electron beam evaporation with hard, chemically and mechanically stable dielectric oxide coatings. Colour correcting...
Neutral Density ( ND) Filters are used to reduce or modify intensify of all wavelengths of light equally, giving no changes in hue of colour rendition. The purpose of a standard photographic neutral density filters are to give greater flexibility to...