{"id":8182,"date":"2015-04-11T08:12:57","date_gmt":"2015-04-11T06:12:57","guid":{"rendered":"http:\/\/linhof.com\/?p=8182"},"modified":"2020-12-12T07:55:28","modified_gmt":"2020-12-12T06:55:28","slug":"fresnel-screen-m-679","status":"publish","type":"post","link":"https:\/\/linhof.com\/en\/fresnel-screen-m-679\/","title":{"rendered":"Fresnel Screen M 679 \/ Techno"},"content":{"rendered":"<section class=\"l-section wpb_row height_small\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row via_flex valign_top type_default stacking_default\"><div class=\"vc_col-sm-12 wpb_column vc_column_container has_text_color has_bg_color\"><div class=\"vc_column-inner us_custom_ce793462\"><div class=\"wpb_wrapper\"><div class=\"w-tabs layout_hor style_trendy switch_click has_scrolling\" style=\"--sections-title-size:1em\"><div class=\"w-tabs-list items_2 align_justify\" style=\"text-transform:uppercase;\"><div class=\"w-tabs-list-h\"><button class=\"w-tabs-item active defined-active\" aria-controls=\"content-v4d1\" aria-expanded=\"true\"><span class=\"w-tabs-item-title\">Description<\/span><\/button><button class=\"w-tabs-item\" aria-controls=\"content-m630\" aria-expanded=\"false\"><span class=\"w-tabs-item-title\">Instructions for use<\/span><\/button><\/div><\/div><div class=\"w-tabs-sections titles-align_none icon_chevron cpos_right\"><div class=\"w-tabs-section active\" id=\"v4d1\"><button class=\"w-tabs-section-header active\" aria-controls=\"content-v4d1\" aria-expanded=\"true\"><div class=\"w-tabs-section-title\">Description<\/div><div class=\"w-tabs-section-control\"><\/div><\/button><div  class=\"w-tabs-section-content\" id=\"content-v4d1\"><div class=\"w-tabs-section-content-h i-cf\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p><strong>Fresnel Screen\u00a0M 679 \/ Techno<br \/>\n<\/strong>002523<br \/>\nFor increasing the brightness of the image corners when using short focal lenghts so called Fresnel screens are used. With the Linhof M 679 and Techno the optical centre of the Fresnel screen is offset from the centre of the screen. In addition it can be moved up and down which means that the brightest part can be positioned on the darker portions of the focusing screen. Because of this a right angle viewfinder can be used without image vignetting. By turning the complete groundglass back by 90\u00b0 also the darker parts of the lateral shift can be compensated.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"w-tabs-section\" id=\"m630\"><button class=\"w-tabs-section-header\" aria-controls=\"content-m630\" aria-expanded=\"false\"><div class=\"w-tabs-section-title\">Instructions for use<\/div><div class=\"w-tabs-section-control\"><\/div><\/button><div  class=\"w-tabs-section-content\" id=\"content-m630\"><div class=\"w-tabs-section-content-h i-cf\"><div class=\"wpb_text_column\"><div class=\"wpb_wrapper\"><p>The Fresnel screen is placed over the groundglass with the grooved side towards the lens. It is slotted into the 2nd groove of the groundglass back permitting easy moving up and down.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>(002523) For increasing the brightness of the image corners when using short focal lenghts Fresnel screens are used.<\/p>\n","protected":false},"author":1,"featured_media":8117,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":{"footnotes":""},"categories":[100,101],"tags":[166,209,210,89,74,197],"class_list":["post-8182","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-m-679-zubehoer","category-techno-zubehoer","tag-image-control","tag-m-679-en","tag-techno-en","tag-m-679","tag-techno","tag-workflow-en","post_format-post-format-image"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/posts\/8182","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/comments?post=8182"}],"version-history":[{"count":11,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/posts\/8182\/revisions"}],"predecessor-version":[{"id":17873,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/posts\/8182\/revisions\/17873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/media\/8117"}],"wp:attachment":[{"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/media?parent=8182"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/categories?post=8182"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/linhof.com\/en\/wp-json\/wp\/v2\/tags?post=8182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}