{"id":5162,"date":"2026-05-24T16:46:45","date_gmt":"2026-05-24T14:46:45","guid":{"rendered":"https:\/\/nicolaslouis.com\/wordpress\/?page_id=5162"},"modified":"2026-09-19T08:36:13","modified_gmt":"2026-09-19T06:36:13","slug":"procedes-photographiques-anciens","status":"publish","type":"page","link":"https:\/\/nicolaslouis.com\/wordpress\/procedes-photographiques-anciens\/","title":{"rendered":"Proc\u00e9d\u00e9s photographiques anciens"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Atelier photographique et proc\u00e9d\u00e9s anciens<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Cyanotype, autochrome, g\u00e9latine-diazo \u2014 l&rsquo;histoire et la pratique des proc\u00e9d\u00e9s alternatifs. Des tutoriels et des explorations pour renouer avec l&rsquo;alchimie de l&rsquo;image.<\/p>\n\n\n<style>.kb-posts-id-5162_7f2c73-2c .kb-post-list-item{display:grid;}<\/style><ul class=\"wp-block-kadence-posts kb-posts kadence-posts-list kb-posts-id-5162_7f2c73-2c content-wrap grid-cols kb-posts-style-boxed grid-sm-col-1 grid-lg-col-1 item-image-style-beside\"><li class=\"kb-post-list-item\">\n\t<article class=\"entry content-bg loop-entry post-4885 post type-post status-publish format-standard has-post-thumbnail hentry category-procedes-photographiques-anciens tag-autochrome\">\n\t\t\t\t<a aria-hidden=\"true\" tabindex=\"-1\" role=\"presentation\" class=\"post-thumbnail kadence-thumbnail-ratio-2-3\" href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/31\/autochrome-lumiere-photographique-couleur\/\" aria-label=\"L&rsquo;Autochrome Lumi\u00e8re &#8211; Premier proc\u00e9d\u00e9 photographique couleur\">\n\t\t\t<div class=\"post-thumbnail-inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone.webp\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"image pour l&#039;article Plaque autochrome Lumi\u00e8re, 1935. Collection Institut Lumi\u00e8re.\" srcset=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone.webp 700w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone-300x300.webp 300w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone-150x150.webp 150w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone-600x600.webp 600w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone-100x100.webp 100w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/article-autochrome-lyon-pont_du_change-quai_de_Saone-50x50.webp 50w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/>\t\t\t<\/div>\n\t\t<\/a><!-- .post-thumbnail -->\n\t\t\t\t<div class=\"entry-content-wrap\">\n\t\t\t<header class=\"entry-header\">\n\t\t<div class=\"entry-taxonomies\">\n\t\t<span class=\"category-links term-links category-style-normal\">\n\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/category\/procedes-photographiques-anciens\/\" class=\"category-link-procedes-photographiques-anciens\" rel=\"tag\">proc\u00e9d\u00e9s photographiques anciens<\/a>\t\t<\/span>\n\t<\/div><!-- .entry-taxonomies -->\n\t<h2 class=\"entry-title\"><a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/31\/autochrome-lumiere-photographique-couleur\/\" rel=\"bookmark\">L&rsquo;Autochrome Lumi\u00e8re &#8211; Premier proc\u00e9d\u00e9 photographique couleur<\/a><\/h2><\/header><!-- .entry-header -->\n\t<div class=\"entry-summary\">\n\t\t<p>L&rsquo;Autochrome Lumi\u00e8re \u2014 Premier proc\u00e9d\u00e9 photographique couleur Histoire de la photographie L&rsquo;Autochrome Lumi\u00e8re Le premier proc\u00e9d\u00e9 photographique couleur accessible au grand public \u2014 invent\u00e9 \u00e0 Lyon \u00e0 partir de f\u00e9cule de pomme de terre 1907 Lyon, France Couleur additive Plaque de verre Auguste &amp; Louis Lumi\u00e8re Une id\u00e9e improbable : recouvrir une plaque de verre&#8230;<\/p>\n\t<\/div><!-- .entry-summary -->\n\t<footer class=\"entry-footer\">\n\t\t\t<div class=\"entry-actions\">\n\t\t\t<p class=\"more-link-wrap\">\n\t\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/31\/autochrome-lumiere-photographique-couleur\/\" class=\"post-more-link\">\n\t\t\t\t\tLire la suite<span class=\"screen-reader-text\"> L&rsquo;Autochrome Lumi\u00e8re &#8211; Premier proc\u00e9d\u00e9 photographique couleur<\/span><span class=\"kadence-svg-iconset svg-baseline\"><svg aria-hidden=\"true\" class=\"kadence-svg-icon kadence-arrow-right-alt-svg\" fill=\"currentColor\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"27\" height=\"28\" viewBox=\"0 0 27 28\"><title>Continuer<\/title><path d=\"M27 13.953c0 0.141-0.063 0.281-0.156 0.375l-6 5.531c-0.156 0.141-0.359 0.172-0.547 0.094-0.172-0.078-0.297-0.25-0.297-0.453v-3.5h-19.5c-0.281 0-0.5-0.219-0.5-0.5v-3c0-0.281 0.219-0.5 0.5-0.5h19.5v-3.5c0-0.203 0.109-0.375 0.297-0.453s0.391-0.047 0.547 0.078l6 5.469c0.094 0.094 0.156 0.219 0.156 0.359v0z\"><\/path>\n\t\t\t<\/svg><\/span>\t\t\t\t<\/a>\n\t\t\t<\/p>\n\t\t<\/div><!-- .entry-actions -->\n\t\t<\/footer><!-- .entry-footer -->\t\t<\/div>\n\t<\/article>\n<\/li>\n<li class=\"kb-post-list-item\">\n\t<article class=\"entry content-bg loop-entry post-4877 post type-post status-publish format-standard has-post-thumbnail hentry category-procedes-photographiques-anciens tag-cyanotype\">\n\t\t\t\t<a aria-hidden=\"true\" tabindex=\"-1\" role=\"presentation\" class=\"post-thumbnail kadence-thumbnail-ratio-2-3\" href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/realiser-un-cyanotype\/\" aria-label=\"R\u00e9aliser un cyanotype\">\n\t\t\t<div class=\"post-thumbnail-inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"451\" height=\"600\" src=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/anna-atkins-cyanotype-laurencia-pinnatifida-1.webp\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"cyanotype anna atkins laurenci pinnatifida\" srcset=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/anna-atkins-cyanotype-laurencia-pinnatifida-1.webp 451w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/anna-atkins-cyanotype-laurencia-pinnatifida-1-226x300.webp 226w\" sizes=\"auto, (max-width: 451px) 100vw, 451px\" \/>\t\t\t<\/div>\n\t\t<\/a><!-- .post-thumbnail -->\n\t\t\t\t<div class=\"entry-content-wrap\">\n\t\t\t<header class=\"entry-header\">\n\t\t<div class=\"entry-taxonomies\">\n\t\t<span class=\"category-links term-links category-style-normal\">\n\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/category\/procedes-photographiques-anciens\/\" class=\"category-link-procedes-photographiques-anciens\" rel=\"tag\">proc\u00e9d\u00e9s photographiques anciens<\/a>\t\t<\/span>\n\t<\/div><!-- .entry-taxonomies -->\n\t<h2 class=\"entry-title\"><a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/realiser-un-cyanotype\/\" rel=\"bookmark\">R\u00e9aliser un cyanotype<\/a><\/h2><\/header><!-- .entry-header -->\n\t<div class=\"entry-summary\">\n\t\t<p>R\u00e9aliser un cyanotype Proc\u00e9d\u00e9 alternatif \u2014 Tutoriel R\u00e9aliser son premier cyanotype De la sensibilisation du papier au tirage final \u2014 guide pas \u00e0 pas pour grands d\u00e9butants 5 \u00e9tapes D\u00e9butant UV naturels ou artificiels Faible co\u00fbt Le principe : le cyanotype est l&rsquo;un des proc\u00e9d\u00e9s photographiques les plus anciens et les plus accessibles. Il repose&#8230;<\/p>\n\t<\/div><!-- .entry-summary -->\n\t<footer class=\"entry-footer\">\n\t\t\t<div class=\"entry-actions\">\n\t\t\t<p class=\"more-link-wrap\">\n\t\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/realiser-un-cyanotype\/\" class=\"post-more-link\">\n\t\t\t\t\tLire la suite<span class=\"screen-reader-text\"> R\u00e9aliser un cyanotype<\/span><span class=\"kadence-svg-iconset svg-baseline\"><svg aria-hidden=\"true\" class=\"kadence-svg-icon kadence-arrow-right-alt-svg\" fill=\"currentColor\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"27\" height=\"28\" viewBox=\"0 0 27 28\"><title>Continuer<\/title><path d=\"M27 13.953c0 0.141-0.063 0.281-0.156 0.375l-6 5.531c-0.156 0.141-0.359 0.172-0.547 0.094-0.172-0.078-0.297-0.25-0.297-0.453v-3.5h-19.5c-0.281 0-0.5-0.219-0.5-0.5v-3c0-0.281 0.219-0.5 0.5-0.5h19.5v-3.5c0-0.203 0.109-0.375 0.297-0.453s0.391-0.047 0.547 0.078l6 5.469c0.094 0.094 0.156 0.219 0.156 0.359v0z\"><\/path>\n\t\t\t<\/svg><\/span>\t\t\t\t<\/a>\n\t\t\t<\/p>\n\t\t<\/div><!-- .entry-actions -->\n\t\t<\/footer><!-- .entry-footer -->\t\t<\/div>\n\t<\/article>\n<\/li>\n<li class=\"kb-post-list-item\">\n\t<article class=\"entry content-bg loop-entry post-4865 post type-post status-publish format-standard has-post-thumbnail hentry category-procedes-photographiques-anciens tag-gelatine-diazo\">\n\t\t\t\t<a aria-hidden=\"true\" tabindex=\"-1\" role=\"presentation\" class=\"post-thumbnail kadence-thumbnail-ratio-2-3\" href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/alchimie-pictorialiste-gelatine-diazo\/\" aria-label=\"L&rsquo;Alchimie Pictorialiste : G\u00e9latine-Diazo\">\n\t\t\t<div class=\"post-thumbnail-inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"613\" src=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Edward_Steichen-_Road_into_the_Valley_-_Moonrise-768x613.webp\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"Photographie pictorialiste d&#039;Edward Steichen repr\u00e9sentant une route sinueuse dans un vallon sous la lueur d&#039;un clair de lune, aux tons vert et bleu profonds.\" srcset=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Edward_Steichen-_Road_into_the_Valley_-_Moonrise-768x613.webp 768w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Edward_Steichen-_Road_into_the_Valley_-_Moonrise-300x240.webp 300w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Edward_Steichen-_Road_into_the_Valley_-_Moonrise-600x479.webp 600w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Edward_Steichen-_Road_into_the_Valley_-_Moonrise.webp 800w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/>\t\t\t<\/div>\n\t\t<\/a><!-- .post-thumbnail -->\n\t\t\t\t<div class=\"entry-content-wrap\">\n\t\t\t<header class=\"entry-header\">\n\t\t<div class=\"entry-taxonomies\">\n\t\t<span class=\"category-links term-links category-style-normal\">\n\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/category\/procedes-photographiques-anciens\/\" class=\"category-link-procedes-photographiques-anciens\" rel=\"tag\">proc\u00e9d\u00e9s photographiques anciens<\/a>\t\t<\/span>\n\t<\/div><!-- .entry-taxonomies -->\n\t<h2 class=\"entry-title\"><a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/alchimie-pictorialiste-gelatine-diazo\/\" rel=\"bookmark\">L&rsquo;Alchimie Pictorialiste : G\u00e9latine-Diazo<\/a><\/h2><\/header><!-- .entry-header -->\n\t<div class=\"entry-summary\">\n\t\t<p>G\u00e9latine-Diazo : L&rsquo;Alchimie Pictorialiste Proc\u00e9d\u00e9s alternatifs \u2014 Pictorialisme L&rsquo;Alchimie Pictorialiste :G\u00e9latine-Diazo (DAS) Recr\u00e9er la profondeur mystique des tirages de Steichen \u2014 sans bichromate Multicouche Contact UV Non toxique Niveau interm\u00e9diaire Contexte historique : En 2007, l&rsquo;analyse scientifique du chef-d&rsquo;\u0153uvre de Steichen Midnight \u2013 Lake George \u2014 longtemps cru \u00eatre un simple tirage au platine \u2014&#8230;<\/p>\n\t<\/div><!-- .entry-summary -->\n\t<footer class=\"entry-footer\">\n\t\t\t<div class=\"entry-actions\">\n\t\t\t<p class=\"more-link-wrap\">\n\t\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/30\/alchimie-pictorialiste-gelatine-diazo\/\" class=\"post-more-link\">\n\t\t\t\t\tLire la suite<span class=\"screen-reader-text\"> L&rsquo;Alchimie Pictorialiste : G\u00e9latine-Diazo<\/span><span class=\"kadence-svg-iconset svg-baseline\"><svg aria-hidden=\"true\" class=\"kadence-svg-icon kadence-arrow-right-alt-svg\" fill=\"currentColor\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"27\" height=\"28\" viewBox=\"0 0 27 28\"><title>Continuer<\/title><path d=\"M27 13.953c0 0.141-0.063 0.281-0.156 0.375l-6 5.531c-0.156 0.141-0.359 0.172-0.547 0.094-0.172-0.078-0.297-0.25-0.297-0.453v-3.5h-19.5c-0.281 0-0.5-0.219-0.5-0.5v-3c0-0.281 0.219-0.5 0.5-0.5h19.5v-3.5c0-0.203 0.109-0.375 0.297-0.453s0.391-0.047 0.547 0.078l6 5.469c0.094 0.094 0.156 0.219 0.156 0.359v0z\"><\/path>\n\t\t\t<\/svg><\/span>\t\t\t\t<\/a>\n\t\t\t<\/p>\n\t\t<\/div><!-- .entry-actions -->\n\t\t<\/footer><!-- .entry-footer -->\t\t<\/div>\n\t<\/article>\n<\/li>\n<li class=\"kb-post-list-item\">\n\t<article class=\"entry content-bg loop-entry post-4819 post type-post status-publish format-standard has-post-thumbnail hentry category-procedes-photographiques-anciens tag-cyanotype\">\n\t\t\t\t<a aria-hidden=\"true\" tabindex=\"-1\" role=\"presentation\" class=\"post-thumbnail kadence-thumbnail-ratio-2-3\" href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/29\/virages-du-cyanotype-chimie-mecanismes-et-protocoles\/\" aria-label=\"Virages du cyanotype : chimie, m\u00e9canismes et protocoles\">\n\t\t\t<div class=\"post-thumbnail-inner\">\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"583\" height=\"786\" src=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Anna_Atkins_algae_cyanotype.jpg\" class=\"attachment-medium_large size-medium_large wp-post-image\" alt=\"cyanotype d&#039;anne Atkins, extrait du livre algae en 1843\" srcset=\"https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Anna_Atkins_algae_cyanotype.jpg 583w, https:\/\/nicolaslouis.com\/wordpress\/wp-content\/uploads\/2026\/03\/Anna_Atkins_algae_cyanotype-223x300.jpg 223w\" sizes=\"auto, (max-width: 583px) 100vw, 583px\" \/>\t\t\t<\/div>\n\t\t<\/a><!-- .post-thumbnail -->\n\t\t\t\t<div class=\"entry-content-wrap\">\n\t\t\t<header class=\"entry-header\">\n\t\t<div class=\"entry-taxonomies\">\n\t\t<span class=\"category-links term-links category-style-normal\">\n\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/category\/procedes-photographiques-anciens\/\" class=\"category-link-procedes-photographiques-anciens\" rel=\"tag\">proc\u00e9d\u00e9s photographiques anciens<\/a>\t\t<\/span>\n\t<\/div><!-- .entry-taxonomies -->\n\t<h2 class=\"entry-title\"><a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/29\/virages-du-cyanotype-chimie-mecanismes-et-protocoles\/\" rel=\"bookmark\">Virages du cyanotype : chimie, m\u00e9canismes et protocoles<\/a><\/h2><\/header><!-- .entry-header -->\n\t<div class=\"entry-summary\">\n\t\t<p>Le cyanotype ne se limite pas \u00e0 son bleu caract\u00e9ristique. Soumis \u00e0 des bains chimiques sp\u00e9cifiques, le bleu de Prusse \u2014 pigment de coordination form\u00e9 lors de l&rsquo;exposition \u2014 peut \u00eatre partiellement ou totalement transform\u00e9, substituant ses ions fer par d&rsquo;autres agents complexants, ou converti en compos\u00e9s enti\u00e8rement diff\u00e9rents. C&rsquo;est ce qu&rsquo;on appelle le virage&#8230;.<\/p>\n\t<\/div><!-- .entry-summary -->\n\t<footer class=\"entry-footer\">\n\t\t\t<div class=\"entry-actions\">\n\t\t\t<p class=\"more-link-wrap\">\n\t\t\t\t<a href=\"https:\/\/nicolaslouis.com\/wordpress\/2026\/03\/29\/virages-du-cyanotype-chimie-mecanismes-et-protocoles\/\" class=\"post-more-link\">\n\t\t\t\t\tLire la suite<span class=\"screen-reader-text\"> Virages du cyanotype : chimie, m\u00e9canismes et protocoles<\/span><span class=\"kadence-svg-iconset svg-baseline\"><svg aria-hidden=\"true\" class=\"kadence-svg-icon kadence-arrow-right-alt-svg\" fill=\"currentColor\" version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"27\" height=\"28\" viewBox=\"0 0 27 28\"><title>Continuer<\/title><path d=\"M27 13.953c0 0.141-0.063 0.281-0.156 0.375l-6 5.531c-0.156 0.141-0.359 0.172-0.547 0.094-0.172-0.078-0.297-0.25-0.297-0.453v-3.5h-19.5c-0.281 0-0.5-0.219-0.5-0.5v-3c0-0.281 0.219-0.5 0.5-0.5h19.5v-3.5c0-0.203 0.109-0.375 0.297-0.453s0.391-0.047 0.547 0.078l6 5.469c0.094 0.094 0.156 0.219 0.156 0.359v0z\"><\/path>\n\t\t\t<\/svg><\/span>\t\t\t\t<\/a>\n\t\t\t<\/p>\n\t\t<\/div><!-- .entry-actions -->\n\t\t<\/footer><!-- .entry-footer -->\t\t<\/div>\n\t<\/article>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Atelier photographique et proc\u00e9d\u00e9s anciens Cyanotype, autochrome, g\u00e9latine-diazo \u2014 l&rsquo;histoire et la pratique des proc\u00e9d\u00e9s alternatifs. Des tutoriels et des explorations pour renouer avec l&rsquo;alchimie de l&rsquo;image.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"hide","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-5162","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Proc\u00e9d\u00e9s photographiques anciens - NICOLAS LOUIS<\/title>\n<meta name=\"description\" content=\"Cyanotype, autochrome, g\u00e9latine-diazo \u2014 exploration des proc\u00e9d\u00e9s photographiques anciens et alternatifs. 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