Firecrest IRND is a revolutionary new type of infrared-attenuating neutral density filter from Formatt-Hitech. Firecrest is a 15 layer multicoating process that is applied directly to the glass though a vacuum-formed, hard-coated, electrolytic process. Firecrest filters are anti-reflective and extremely flare resistant, which increases contrast and visual acuity in challenging lighting conditions. They are also hydrophobic and scratch-resistant.
