Formatt-Hitech’s new UV filters with Firecrest coating are the single most effective tool available for eliminating UV contamination and increasing contrast and acuity in your images, while also providing protection for the front element of your valuable lenses. This 370nm offers additional UV protection over the basic Firecrest UV making it a great everyday UV filter for discerning shooters. For maximum UV reduction (shooting at high altitudes for example) a UV 400nm is also available. Firecrest UV’s feature our exclusive Firecrest multicoating, that is both anti-reflective and hydrophobic, coated to broadcast quality glass in the thinnest rings on the market.