{"id":21,"date":"2026-04-08T09:56:51","date_gmt":"2026-04-08T09:56:51","guid":{"rendered":"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/ernst-gundlach-american-optics-sonnar-predecessor\/"},"modified":"2026-04-08T09:56:51","modified_gmt":"2026-04-08T09:56:51","slug":"ernst-gundlach-american-optics-sonnar-predecessor","status":"publish","type":"post","link":"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/ernst-gundlach-american-optics-sonnar-predecessor\/","title":{"rendered":"Ernst Gundlach and the American Lens Design That Preceded the Sonnar by Four Decades"},"content":{"rendered":"<p>I feel like generally American manufacturers don\u2019t get their due credit when it comes to their inventions in the world of optics.<\/p>\n<p>The idea behind Ludwig Bertele\u2019s Sonnar was to reduce glare and loss of contrast while increasing transmission by incorporating fewer air-to-glass surfaces, although this was a concept that wasn\u2019t exactly invented by him. This idea in fact reached its peak four decades before his invention.<\/p>\n<p>Born in Pyritz, Pomerania in 1824, Ernst Gundlach spent his years working for several prestigious optomechanical companies in Europe before making the jump across the pond to the US in 1876.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I feel like generally American manufacturers don\u2019t get their due credit when it comes to their inventions in the world of optics. The idea behind Ludwig Bertele\u2019s Sonnar was to reduce glare and loss of contrast while increasing transmission by incorporating fewer air-to-glass surfaces, although this was a concept that wasn\u2019t exactly invented by him. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[54,53,56,57,55,20],"class_list":["post-21","post","type-post","status-publish","format-standard","hentry","category-lens-history","tag-american-optics","tag-ernst-gundlach","tag-ludwig-bertele","tag-rochester","tag-sonnar","tag-vintage-lenses"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ernst Gundlach and the American Lens Design That Preceded the Sonnar by Four Decades - bokehsommelier<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/ernst-gundlach-american-optics-sonnar-predecessor\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ernst Gundlach and the American Lens Design That Preceded the Sonnar by Four Decades - bokehsommelier\" \/>\n<meta property=\"og:description\" content=\"I feel like generally American manufacturers don\u2019t get their due credit when it comes to their inventions in the world of optics. The idea behind Ludwig Bertele\u2019s Sonnar was to reduce glare and loss of contrast while increasing transmission by incorporating fewer air-to-glass surfaces, although this was a concept that wasn\u2019t exactly invented by him. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/bokehsommelier.com\/index.php\/2026\/04\/08\/ernst-gundlach-american-optics-sonnar-predecessor\/\" \/>\n<meta property=\"og:site_name\" content=\"bokehsommelier\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-08T09:56:51+00:00\" \/>\n<meta name=\"author\" content=\"wolfgang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"wolfgang\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/\"},\"author\":{\"name\":\"wolfgang\",\"@id\":\"https:\\\/\\\/bokehsommelier.com\\\/#\\\/schema\\\/person\\\/3e447dc9f5b33e00bf8dd6e7a318cf04\"},\"headline\":\"Ernst Gundlach and the American Lens Design That Preceded the Sonnar by Four Decades\",\"datePublished\":\"2026-04-08T09:56:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/\"},\"wordCount\":113,\"commentCount\":0,\"keywords\":[\"American optics\",\"Ernst Gundlach\",\"Ludwig Bertele\",\"Rochester\",\"Sonnar\",\"vintage lenses\"],\"articleSection\":[\"Lens History\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/\",\"url\":\"https:\\\/\\\/bokehsommelier.com\\\/index.php\\\/2026\\\/04\\\/08\\\/ernst-gundlach-american-optics-sonnar-predecessor\\\/\",\"name\":\"Ernst Gundlach and the American Lens Design That Preceded the Sonnar by Four Decades - 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