Request InfoUQG (Optics) Ltd.UQG Optics reflective coated metallic ND filters are coated in two glass types. The visible IR range is ND coated on optical glass to cover 350nm to 2500nm. The UV range is coated on fused silica for use down to 170nm. Please be aware the density’s are coated for 550nm, but in the UV this will give up to 40% higher density. UQG Optics has an extensive range of stock sizes for a quick delivery. CUSTOM RANGE DIMENSIONS: Squares/Rectangles 1mm x 1mm to 300mm x 300mm Diameters 5mm to 300mm OD 0.10 to OD 3 THICKNESS: 0.30mm to 6.00mm (subject to dimension) OPTIONS UV...See full productRelated content from Photonics MediaPRODUCTSPhotonics.com 2/15/2024Bandpass Optical FiltersThe Semrock Nanopede™ Optical Filters from IDEX Health & Science cover the near UV and visible spectrum 20 nm full-width, half-max steps. 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