{"id":93172,"date":"2026-01-09T14:44:24","date_gmt":"2026-01-09T13:44:24","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=93172"},"modified":"2026-07-19T23:51:39","modified_gmt":"2026-07-19T21:51:39","slug":"omegon-step-down-ring-109mm-78mm","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-step-down-ring-109mm-78mm\/","title":{"rendered":"Omegon Step-Down Ring 109 mm to 78 mm"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Omegon Step-Down Ring 109 mm naar 78 mm: grote buisopening, standaard focuser<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sommige Newton-buizen hebben een focuseropening met een 109 mm ringklem, terwijl de Omegon focusers op 78 mm aansluiten. Deze ring overbrugt dat verschil in een enkel deel: 109 mm aan de buiszijde, 78 mm aan de focuserzijde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De vrije doorgang van 75 mm blijft ruim, zodat de lichtbundel van snelle Newtons niet wordt afgeknepen. De optische lengte van 2 mm is verwaarloosbaar.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-3 is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Stapsgewijze-ring-109-tot-78-mm-1.jpg\" alt=\"Omegon step-down ring van 109 mm naar 78 mm ringklem\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Stapsgewijze-ring-109-tot-78-mm.jpg\" alt=\"Omegon step-down ring van 109 mm naar 78 mm ringklem\" title=\"\"><\/figure><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Buiszijde ringklem 109 mm<\/li><li>Focuserzijde 78 mm<\/li><li>Vrije doorgang 75 mm<\/li><li>Optische lengte 2 mm<\/li><li>Anodized aluminum<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Voor Newton-buizen met 109 mm ringklem en focusers met 78 mm aansluiting.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Buiszijde<\/strong><\/td><td>Ringklem 109 mm<\/td><\/tr><tr><td><strong>Focuser side<\/strong><\/td><td>78 mm<\/td><\/tr><tr><td><strong>Free passage<\/strong><\/td><td>75 mm<\/td><\/tr><tr><td><strong>Optical length<\/strong><\/td><td>2 mm<\/td><\/tr><tr><td><strong>Width<\/strong><\/td><td>114 mm<\/td><\/tr><tr><td><strong>Material<\/strong><\/td><td>Anodized aluminum<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more adapters for this merk on the <a href=\"\/en\/brands\/omegon\/\">Omegon merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Step-down ring die Newton-buizen met een 109 mm ringklem verbindt met focusers met 78 mm aansluiting. Vrije doorgang 75 mm.<\/p>","protected":false},"featured_media":99379,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,499],"product_tag":[],"class_list":["post-93172","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescoop-accessoires","product_cat-adapters","product_shipping_class-licht","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"instock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":93146,"url":"https:\/\/www.telescoop.nl\/en\/omegon-adapterbundel-80mm-78mm-adapterplaat\/","url_meta":{"origin":93172,"position":0},"title":"Omegon 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