{"id":774,"date":"2025-11-23T13:31:28","date_gmt":"2025-11-23T12:31:28","guid":{"rendered":"https:\/\/www.2026.subfocal.fr\/?p=774"},"modified":"2026-02-24T10:13:07","modified_gmt":"2026-02-24T09:13:07","slug":"adaptateur-metabones-ef-rf-speed-booster-ultra-0-71x","status":"publish","type":"post","link":"https:\/\/www.subfocal.fr\/en\/materiel\/adaptateur-metabones-ef-rf-speed-booster-ultra-0-71x\/","title":{"rendered":"adaptateur Metabones EF-RF Speed Booster ULTRA 0.71x"},"content":{"rendered":"<p class=\"has-primary-color has-text-color has-link-color wp-elements-6de9a9736f910c81670a4e309fa67e61 wp-block-paragraph\">The Metabones EF \u2192 RF Speed Booster ULTRA 0.71\u00d7 is a high-end optical adapter designed to mount Canon EF lenses on RF mount cameras while reducing the zoom factor. Thanks to this \u201cfocal reducer,\u201d lenses become 0.71\u00d7 \u201cwider\u201d and the maximum aperture gains one stop.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Metabones EF \u2192 RF Speed Booster ULTRA 0.71\u00d7 is a high-end optical adapter designed to mount Canon EF lenses on RF mount cameras while reducing the zoom factor. Thanks to this \u201cfocal reducer,\u201d lenses become 0.71\u00d7 \u201cwider\u201d and the maximum aperture gains one stop.<\/p>","protected":false},"author":1,"featured_media":775,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[18],"tags":[],"class_list":["post-774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accessoire"],"_links":{"self":[{"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/posts\/774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/comments?post=774"}],"version-history":[{"count":2,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/posts\/774\/revisions"}],"predecessor-version":[{"id":1048,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/posts\/774\/revisions\/1048"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/media\/775"}],"wp:attachment":[{"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/media?parent=774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/categories?post=774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.subfocal.fr\/en\/wp-json\/wp\/v2\/tags?post=774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}