{"product_id":"stepped-neutral-density-nd-filters-ndfr-50s-1","title":"Stepped Neutral Density (ND) Filters NDFR-50S-1","description":"\u003ch2\u003eStepped Neutral Density (ND) Filters — Model NDFR-50S-1\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eØØ50 mm.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable OD value by rotation the angle\u003c\/li\u003e\n\u003cli\u003eCircular, 8 or 10 different OD steps\u003c\/li\u003e\n\u003cli\u003eApplicable for 240 - 1200 nm wavelength\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Stepped Neutral Density (ND) Filter is composed of UV fused silica substrate and metal (Inconel) coating, designed for a transmission wavelength range of 240-1200 nm. The optical density (OD) range of the step neutral density filter is 0.04 to 1.0, 0.04 to 3.0, or 0.04 to 4.0, providing 8 or 10 steps of optical density adjustment through rotation. Available sizes include Ø50 mm and Ø100 mm, with coating radial angles of 297.5°±5.0° or 297.0°±5.0° depending on the size. In addition to standard step neutral density filters, LBTEK also offers various customization services. For specific customization requirements, please contact LBTEK Technical Support.\u003c\/p\u003e\n\u003ch3\u003eStepped Neutral Density (ND) Filters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSubstrate material: UV fused silica\u003c\/li\u003e\n\u003cli\u003eCoating: Inconel\u003c\/li\u003e\n\u003cli\u003eSize: Ø50 mm or Ø100 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLBTEK Stepped Neutral Density Filters are composed of UV-grade fused silica substrates and metal (Inconel) coatings, designed for a transmission wavelength range of 240-1200 nm. The optical density (OD) range of step-type neutral density filters is 0.04 to 1.0, 0.04 to 3.0, or 0.04 to 4.0, providing 8 or 10 steps of optical density adjustment through rotation. Their center hole diameter is 7.5 mm, facilitating easy installation of mechanical components. Although these filters are reflective neutral density filters, the Inconel coating still absorbs some incident light. For optimal performance, it is recommended that light be incident from the side of the Inconel coating. Furthermore, care should be taken to avoid contact with the unprotected metal coating, as contact may scratch the unprotected surface. Air blowing is recommended for cleaning.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47518962974874,"sku":"NDFR-50S-1","price":1188.74,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-1_E9_98_B6_E8_B7_83_E5_BC_8F_E4_B8_AD_E6_80_A7_E5_AF_86_E5_BA_A6_E6_BB_A4_E5_85_89_E7_89_87-FkxbLqmIwQe6R1sJAdK6sOTfSViW_1138a31e-d43d-4b47-9111-cdd24218a412.jpg?v=1772680885","url":"https:\/\/waveqvanta.com\/products\/stepped-neutral-density-nd-filters-ndfr-50s-1","provider":"WaveQuanta","version":"1.0","type":"link"}