{"version":"1.0","provider_name":"bokehsommelier","provider_url":"https:\/\/bokehsommelier.com","title":"Vienna, Salzburg, and the Austrian Optical Tradition Nobody Talks About - bokehsommelier","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"FjKW5uLikJ\"><a href=\"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/austria-vienna-salzburg-optics-history-daguerre\/\">Vienna, Salzburg, and the Austrian Optical Tradition Nobody Talks About<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/austria-vienna-salzburg-optics-history-daguerre\/embed\/#?secret=FjKW5uLikJ\" width=\"600\" height=\"338\" title=\"&#8220;Vienna, Salzburg, and the Austrian Optical Tradition Nobody Talks About&#8221; &#8212; bokehsommelier\" data-secret=\"FjKW5uLikJ\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/bokehsommelier.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Even the most hardcore lens nerds would probably associate Salzburg with a certain classical composer rather than optics. Vienna is undoubtedly one of the leading cities of arts in Europe, partially due to the Austrian monarchs traditionally being the premier patrons of the arts in general. Even before he introduced his groundbreaking invention, Louis Daguerre [&hellip;]"}