{"id":144,"date":"2026-08-11T16:06:59","date_gmt":"2026-08-11T16:06:59","guid":{"rendered":"https:\/\/cyano.noiretblanc.ch\/?page_id=144"},"modified":"2026-08-11T16:39:03","modified_gmt":"2026-08-11T16:39:03","slug":"technique","status":"publish","type":"page","link":"https:\/\/cyano.noiretblanc.ch\/?page_id=144","title":{"rendered":"Technique"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Cyanotype<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Cyanotype is an alternative photographic printing process, using a photosensible formula based on ferric ions. Exposing a surface coated with this formula to the sun light will trigger a chemical reaction, producing a dark blue image, after being developped in a water bath. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Discovered by John Herschel in 1842, this process was used by botanist Anna Atkins to create a codex of algae from the British Isles, but also to reproduce plan at a large scale.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While laid aside for industrial usage, cyanotype is still used for artistic purposes.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Le cyanotype est un proc\u00e9d\u00e9 de photographie alternative, utilisant une solution photosensible \u00e0 base d&#8217;ions ferreux. L&#8217;exposition d&#8217;une surface recouverte de cette solution au soleil va entra\u00eener une r\u00e9action chimique qui produira un bleu de Prusse, apr\u00e8s un passage dans un bain d&#8217;eau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e9couvert par John Herschel en 1842, ce proc\u00e9d\u00e9 a \u00e9t\u00e9 utilis\u00e9 en particulier par la botaniste Anna Atkins pour cr\u00e9er un r\u00e9pertoire des algues des \u00celes britanniques, mais aussi pour reproduire \u00e0 grande \u00e9chelle des plans.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Abandonn\u00e9 au profit d&#8217;autres proc\u00e9d\u00e9s de reproduction plus industriel, le cyanotype reste utilis\u00e9 dans le monde artistique.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Cyanophotographs\/Cyanophotographies<\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Cyanophotographs are cyanotypes made in a camera, instead of contact printing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Using the same chemicals, but in a different way, cyanophotography allows the creation of images directly from the camera, without any intermediary process.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Les cyanophotographies sont des cyanotypes produits dans un appareil photographique, au lieu d&#8217;une exposition directe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En utilisant les m\u00eames produits chimiques, mais d&#8217;une mani\u00e8re diff\u00e9rente, la cyanophotographie permet la cr\u00e9ation d&#8217;images \u00e0 partir de l&#8217;appareil directement, sans processus interm\u00e9diaire.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cyanotype Cyanotype is an alternative photographic printing process, using a photosensible formula based on ferric ions. Exposing a surface coated with this formula to the sun light will trigger a chemical reaction, producing a dark blue image, after being developped in a water bath. Discovered by John Herschel in 1842, this process was used by [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-144","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/pages\/144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=144"}],"version-history":[{"count":3,"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/pages\/144\/revisions"}],"predecessor-version":[{"id":147,"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=\/wp\/v2\/pages\/144\/revisions\/147"}],"wp:attachment":[{"href":"https:\/\/cyano.noiretblanc.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}