{"product_id":"schott-kl-28-mm-colour-optical-filters-for-fibre-optic-light-sources","title":"SCHOTT KL 28 mm Colour \u0026 Optical Filters for Fibre Optic Light Sources","description":"\u003cdiv style=\"font-family: Arial, Helvetica, sans-serif; color: #1f2937; line-height: 1.65;\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv style=\"background: linear-gradient(135deg, #0077b6 0%, #00a6d6 100%); color: #ffffff; padding: 28px; border-radius: 12px; margin-bottom: 24px;\"\u003e\n\n    \u003ch1 style=\"margin: 0 0 10px 0; font-size: 28px; line-height: 1.25; color: #ffffff;\"\u003e\n      SCHOTT KL 28 mm Colour \u0026amp; Optical Filters for Fibre Optic Light Sources\n    \u003c\/h1\u003e\n\n    \u003cp style=\"margin: 0; font-size: 17px;\"\u003e\n      Genuine SCHOTT Ø28 mm filters for modifying illumination colour, spectral characteristics and contrast with compatible KL fibre-optic light sources.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- INTRO --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 20px; margin-bottom: 24px;\"\u003e\n\n    \u003ch2 style=\"color: #0077b6; margin-top: 0; font-size: 21px;\"\u003e\n      Tailor the Illumination to Your Application\n    \u003c\/h2\u003e\n\n    \u003cp\u003e\n      SCHOTT offers a range of Ø28 mm optical filters for compatible KL cold-light sources.\n    \u003c\/p\u003e\n\n    \u003cp\u003e\n      Colour and spectral filters can be used to alter the illumination reaching the specimen, helping optimise contrast or provide a particular illumination characteristic for microscopy, inspection and imaging applications.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      An empty filter slider is also available for compatible systems where a replacement holder or custom filter arrangement is required.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- FILTERS --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Available Filters\n  \u003c\/h2\u003e\n\n\n  \u003c!-- HALOGEN --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Halogen Filter Ø28 mm – P\/N 258.307\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      SCHOTT Ø28 mm halogen filter listed for compatible KL1500, KL1500plus, KL1600 and KL2500LED systems.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- DAYLIGHT --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Daylight Filter Ø28 mm – P\/N 258.306\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Daylight conversion filter for compatible SCHOTT KL light sources.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Listed specifically for \u003cstrong\u003eKL1500LCD, KL2500LCD and KL1500HAL\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- BLUE --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Blue Filter Ø28 mm – P\/N 258.302\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Blue colour filter for compatible SCHOTT KL fibre-optic illumination systems.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- RED --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Red Filter Ø28 mm – P\/N 258.303\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Red colour filter for compatible SCHOTT KL fibre-optic illumination systems.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- GREEN --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Green Filter Ø28 mm – P\/N 258.304\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Green colour filter for compatible SCHOTT KL fibre-optic illumination systems.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- YELLOW --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Yellow Filter Ø28 mm – P\/N 258.305\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Yellow colour filter for compatible SCHOTT KL fibre-optic illumination systems.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- FLUORESCENCE --\u003e\n  \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Fluorescence Blue Filter – 485 nm – P\/N 258.313\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Blue fluorescence excitation filter with a specified excitation wavelength of \u003cstrong\u003e485 nm\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      This accessory is listed specifically for the \u003cstrong\u003eSCHOTT KL2500LCD\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- EMPTY SLIDER --\u003e\n  \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 10px; padding: 18px; margin: 18px 0 28px 0;\"\u003e\n\n    \u003ch3 style=\"color: #0077b6; margin-top: 0;\"\u003e\n      Empty Ø28 mm Filter Slider – P\/N 258.330\n    \u003c\/h3\u003e\n\n    \u003cp\u003e\n      Empty filter slider designed to accept compatible Ø28 mm filters.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Listed for the \u003cstrong\u003eKL1500HAL, KL1600LED and KL2500LED\u003c\/strong\u003e.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- COMPATIBILITY --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Compatibility Guide\n  \u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 20px 0 28px 0;\"\u003e\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eKL1600LED\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n      Compatible with selected Ø28 mm SCHOTT filters and the 258.330 filter slider.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eKL2500LED\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n      Compatible with selected Ø28 mm SCHOTT filters and the 258.330 filter slider.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eKL1500HAL\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n      Compatible with selected Ø28 mm filters including the daylight filter and filter slider.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"background: #eef8fc; border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eKL2500LCD\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\n      Required for the specialist 258.313 485 nm fluorescence excitation filter.\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- IMPORTANT --\u003e\n  \u003cdiv style=\"background: #fff8e8; border-left: 5px solid #d79b00; padding: 18px; margin: 24px 0;\"\u003e\n\n    \u003cstrong style=\"font-size: 18px; color: #805c00;\"\u003e\n      Filter Compatibility Varies\n    \u003c\/strong\u003e\n\n    \u003cp\u003e\n      Not every filter is suitable for every KL light-source model.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Please check your SCHOTT KL model before ordering. If you are unsure, send Auckland Scientific the model or part number of your light source and we can help confirm the correct filter.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- USES --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Typical Uses\n  \u003c\/h2\u003e\n\n  \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; margin: 20px 0 28px 0;\"\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eContrast Enhancement\u003c\/strong\u003e\u003cbr\u003e\n      Change illumination colour to help improve visibility of particular specimen features.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eImaging\u003c\/strong\u003e\u003cbr\u003e\n      Adjust illumination characteristics for microscopy and documentation.\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"border: 1px solid #b9e3f4; border-radius: 8px; padding: 15px;\"\u003e\n      \u003cstrong style=\"color: #0077b6;\"\u003eIndustrial Inspection\u003c\/strong\u003e\u003cbr\u003e\n      Optimise visual contrast when examining components and surface features.\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- TECHNICAL RESOURCES --\u003e\n  \u003ch2 style=\"color: #0077b6; border-bottom: 2px solid #00a6d6; padding-bottom: 7px;\"\u003e\n    Technical Resources\n  \u003c\/h2\u003e\n\n  \u003cp\u003e\n    SCHOTT KL brochures, manuals and technical information are available through the Auckland Scientific Technical Resource Centre.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"margin: 18px 0 28px 0;\"\u003e\n\n    \u003ca href=\"https:\/\/downloads.auckland-scientific.co.uk\/schott\/brochures\/\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; background: #d9f0fa; border: 1px solid #0077b6; color: #005f91 !important; text-decoration: none; padding: 10px 16px; border-radius: 6px; font-weight: bold; margin: 4px 8px 4px 0;\"\u003e\n      SCHOTT Brochures \u0026amp; Datasheets\n    \u003c\/a\u003e\n\n    \u003ca href=\"https:\/\/downloads.auckland-scientific.co.uk\/schott\/manuals\/\" target=\"_blank\" rel=\"noopener\" style=\"display: inline-block; background: #d9f0fa; border: 1px solid #0077b6; color: #005f91 !important; text-decoration: none; padding: 10px 16px; border-radius: 6px; font-weight: bold;\"\u003e\n      SCHOTT Manuals\n    \u003c\/a\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003c!-- SUPPORT --\u003e\n  \u003cdiv style=\"background: #f1f7ff; border-left: 5px solid #0077b6; padding: 20px; margin-top: 25px;\"\u003e\n\n    \u003ch2 style=\"color: #0077b6; margin-top: 0; border: 0; padding: 0;\"\u003e\n      Auckland Scientific – Application Support\n    \u003c\/h2\u003e\n\n    \u003cp style=\"margin-bottom: 0;\"\u003e\n      Tell us your SCHOTT KL light-source model and what you are trying to inspect and we can help identify the most appropriate filter for your application.\n    \u003c\/p\u003e\n\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Auckland Scientific Ltd","offers":[{"title":"Halogen Filter Ø28 mm","offer_id":59427775316293,"sku":null,"price":37.0,"currency_code":"GBP","in_stock":true},{"title":"Daylight Filter Ø28 mm","offer_id":59427775349061,"sku":null,"price":37.0,"currency_code":"GBP","in_stock":true},{"title":"Blue Filter Ø28 mm","offer_id":59427775381829,"sku":null,"price":56.0,"currency_code":"GBP","in_stock":true},{"title":"Red Filter Ø28 mm","offer_id":59427775414597,"sku":null,"price":37.0,"currency_code":"GBP","in_stock":true},{"title":"Green Filter Ø28 mm","offer_id":59427775447365,"sku":null,"price":37.0,"currency_code":"GBP","in_stock":true},{"title":"Yellow Filter Ø28 mm","offer_id":59427775480133,"sku":null,"price":37.0,"currency_code":"GBP","in_stock":true},{"title":"Fluorescence Blue Filter – 485 nm","offer_id":59427775512901,"sku":null,"price":370.0,"currency_code":"GBP","in_stock":true},{"title":"Empty Ø28 mm Filter Slider","offer_id":59427775545669,"sku":null,"price":11.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/1930\/6309\/files\/halogen_filter.jpg?v=1789918997","url":"https:\/\/auckland-scientific.co.uk\/products\/schott-kl-28-mm-colour-optical-filters-for-fibre-optic-light-sources","provider":"Auckland Scientific Ltd","version":"1.0","type":"link"}