{"id":107,"date":"2012-01-26T01:57:12","date_gmt":"2012-01-26T00:57:12","guid":{"rendered":"http:\/\/www.proof.de\/?p=107"},"modified":"2020-05-08T12:01:56","modified_gmt":"2020-05-08T10:01:56","slug":"normlicht-d50-oder-d50-oder-was","status":"publish","type":"post","link":"http:\/\/blog.proofs.de\/es\/normlicht-d50-oder-d50-oder-was\/","title":{"rendered":"Luz est\u00e1ndar y efecto de metamerismo"},"content":{"rendered":"<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-top\" data-payload='{\"align\":\"right\",\"id\":\"107\",\"slug\":\"default\",\"valign\":\"top\",\"ignore\":\"\",\"reference\":\"auto\",\"class\":\"\",\"count\":\"0\",\"legendonly\":\"\",\"readonly\":\"\",\"score\":\"0\",\"starsonly\":\"\",\"best\":\"5\",\"gap\":\"5\",\"greet\":\"Jetzt bewerten\",\"legend\":\"0\\\/5 - (0 votos)\",\"size\":\"24\",\"title\":\"Normlicht und Metamerie-Effekt\",\"width\":\"0\",\"_legend\":\"{score}\\\/{best} - ({count} {votes})\",\"font_factor\":\"1.25\"}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">Valore ahora<\/span>\n    <\/div>\n    <\/div>\n<p>Una <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/proof\/\" target=\"_self\" title=\"Una prueba (correctamente: prueba de contrato) es un dispositivo de pruebas certificado por la norma ISO 12647-7 para la industria de las artes gr\u00e1ficas. Una prueba simula el colorido de la impresi\u00f3n offset o del huecograbado de una forma jur\u00eddicamente vinculante dentro de las estrechas tolerancias de la norma ISO.\" class=\"encyclopedia\">\u200ePrueba<\/a> s\u00f3lo es tan buena como la iluminaci\u00f3n bajo la que se contempla. Acercarse simplemente a la ventana, o encender la luz al anochecer, no sirve de nada: en la ventana, entre diciembre y julio, entre las 8 de la ma\u00f1ana y las 8 de la tarde, entre nublado y soleado, hay una enorme diferencia de iluminaci\u00f3n que hace imposible cualquier valoraci\u00f3n del color. Y quien enciende la luz normalmente enciende una bombilla con 2700 <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/kelvin\/\" target=\"_self\" title=\"Kelvin es una unidad de temperatura absoluta utilizada en ciencia. La luz diurna se define como 6500 Kelvin, para la impresi\u00f3n se aplica en Europa una temperatura de color de 5000 Kelvin con la luz est\u00e1ndar D50.\" class=\"encyclopedia\">Kelvin<\/a> a - o peor a\u00fan: una bombilla de bajo consumo que de alguna manera brilla en algunos espectros... \u00a1un desastre!<\/p>\n<p>En la letra impresa se encuentran las razones de <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/metamerie\/\" target=\"_self\" title=\"El t\u00e9rmino metamerismo se refiere al efecto de que dos cosas pueden parecer iguales bajo una luz, pero completamente diferentes bajo otra.\" class=\"encyclopedia\">Metamerismo<\/a>-efectos (en pocas palabras: que dos colores parezcan id\u00e9nticos bajo una luz pero completamente diferentes bajo otra) en particular a las diferentes tecnolog\u00edas de impresi\u00f3n. Colores que parecen iguales bajo una bombilla pueden de repente parecer completamente diferentes bajo un tubo de ne\u00f3n.<\/p>\n<p>En los \u00faltimos a\u00f1os, el <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/digitalproofs\/\" target=\"_self\" title=\"Las pruebas digitales (correctamente: pruebas de contrato) son una herramienta de pruebas con certificaci\u00f3n ISO para la industria de las artes gr\u00e1ficas. Las pruebas digitales simulan el colorido de la impresi\u00f3n offset o del huecograbado en color y de forma legalmente vinculante dentro de las estrechas tolerancias de la norma ISO 12647-7. Hoy en d\u00eda, se calculan casi exclusivamente mediante un RIP y despu\u00e9s se producen con impresoras de inyecci\u00f3n de tinta en papeles especiales para pruebas.\" class=\"encyclopedia\">Pruebas digitales<\/a> La impresi\u00f3n con tinta ha ganado aceptaci\u00f3n en el sector de las pruebas. Dado que para la impresi\u00f3n se utiliza tinta, es necesario utilizar un papel estucado especial, que no se parece en nada a la tirada posterior. Cualquiera que haya intentado imprimir en papel estucado brillante con una impresora de chorro de tinta lo sabe: \u00a1la tinta nunca dura! Por lo tanto, siempre hay metamerismo cuando se imprime una prueba con un <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/offsetdruck\/\" target=\"_self\" title=\"La impresi\u00f3n offset es un proceso de impresi\u00f3n indirecta. Indirecto significa que la forma de impresi\u00f3n y el sustrato no entran en contacto directo, sino que se utiliza un soporte intermedio como medio de transferencia. Es el proceso de impresi\u00f3n m\u00e1s extendido. Existen: - prensas offset de pliegos y - prensas offset de bobina.\" class=\"encyclopedia\">Impresi\u00f3n offset<\/a> deben compararse.<\/p>\n<p>Especialmente importante es la luz bajo la que se ven la prueba y la tirada de producci\u00f3n.<\/p>\n<p>La norma ISO 3664 regula la iluminaci\u00f3n normalizada necesaria para la consideraci\u00f3n de <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/proofs\/\" target=\"_self\" title=\"En el sector de la impresi\u00f3n, las pruebas (o impresiones de prueba) se refieren a la simulaci\u00f3n encuadernada en color y legalmente vinculante de un resultado de impresi\u00f3n con fines de control. La norma responsable de las pruebas es la ISO 12647-7:2016, es decir, la revisi\u00f3n actual de 2016.\" class=\"encyclopedia\">Pruebas<\/a> y la impresi\u00f3n es importante. De este modo <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/d50\/\" target=\"_self\" title=\"D50 es la luz est\u00e1ndar de la industria gr\u00e1fica. Las pruebas s\u00f3lo pueden igualarse en color bajo la luz est\u00e1ndar D50,\" class=\"encyclopedia\">D50<\/a> Ya no es D50: La comisi\u00f3n internacional de iluminaci\u00f3n CIE ha revisado la norma ISO 3664 en los \u00faltimos a\u00f1os y la ha adaptado a las circunstancias actuales. Si antes los componentes UV estaban estrictamente prohibidos, ahora forman parte de la norma. Porque en el pasado la atenci\u00f3n se centraba en la conformidad de la diapositiva y la impresi\u00f3n, mientras que hoy se centra en el monitor, <a href=\"http:\/\/blog.proofs.de\/es\/lexikon\/digitalproof\/\" target=\"_self\" title=\"Una prueba digital (correctamente: prueba de contrato) es un dispositivo de pruebas certificado por la norma ISO 12647-7 para la industria de las artes gr\u00e1ficas. Una prueba digital simula el colorido de la impresi\u00f3n offset o del huecograbado de una forma jur\u00eddicamente vinculante dentro de las estrechas tolerancias de la norma ISO.\" class=\"encyclopedia\">Prueba digital<\/a> y la impresi\u00f3n offset son importantes. Por lo tanto, las pruebas deben verse siempre en D50 Normal para garantizar que su percepci\u00f3n es realmente \"fiel al color\".<\/p>\n<p>Para quienes deseen comprobar los efectos del metamerismo, el<a title=\"Indicador de temperatura de color UGRA\" href=\"https:\/\/www.ugra.ch\/produkt\/ugra-light-indicator-strip-d50\/\" target=\"_blank\" rel=\"noopener noreferrer\"> Indicador luminoso UGRA<\/a> recomendadas. Con estas tiras, los efectos del metamerismo pueden comprobarse de forma muy r\u00e1pida y clara.<\/p>","protected":false},"excerpt":{"rendered":"<p>Una prueba s\u00f3lo es tan buena como la iluminaci\u00f3n bajo la que se contempla. Acercarse simplemente a la ventana o encender la luz al anochecer no sirve de nada: en la ventana entre diciembre y julio, entre las 8 de la ma\u00f1ana y las 8 de la tarde, entre nublado y soleado, hay una enorme diferencia de iluminaci\u00f3n que hace imposible cualquier evaluaci\u00f3n del color. Y si enciende la luz, lo normal es que encienda una bombilla con 2700 Kelvin - o a\u00fan peor: una bombilla de bajo consumo que de alguna manera brilla en alg\u00fan tipo de espectro... \u00a1un desastre! En impresi\u00f3n ... <\/p>\n<p class=\"read-more-container\"><a title=\"Luz est\u00e1ndar y efecto de metamerismo\" class=\"read-more button\" href=\"http:\/\/blog.proofs.de\/es\/normlicht-d50-oder-d50-oder-was\/#more-107\" aria-label=\"Leer m\u00e1s sobre Luz est\u00e1ndar y efecto de metamerismo\">Leer m\u00e1s<\/a><\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[18,25,437,7,442],"tags":[533,277,1054,551,47,525],"class_list":["post-107","post","type-post","status-publish","format-standard","hentry","category-haufige-fragen","category-licht-und-normlicht","category-proof-software-und-technik","category-proof-wissen","category-prozessstandard-offsetdruck-proof-wissen","tag-d50","tag-farbtemperatur","tag-farbtemperatur-indikator","tag-metamerie","tag-normlicht-2","tag-ugra","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Unter welchen Lichtbedingungen muss ein Proof eigentlich betrachtet werden? 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