{"id":107598,"date":"2026-04-28T17:37:34","date_gmt":"2026-04-28T15:37:34","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=107598"},"modified":"2026-07-20T13:26:58","modified_gmt":"2026-07-20T11:26:58","slug":"televue-35-inch-extension-tube","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-verlengstuk-35-inch\/","title":{"rendered":"TeleVue 3.5 inch Extension Tube"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>TeleVue Extension Tube 1.25 inch: 2 inch extension of 1.25 inch<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The long 3.5-inch (approximately 89 mm) extension tube bridges the entire light path of a zenith mirror. This allows you to view or photograph straight through the telescope without losing focus.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is the adapter that brings focus within range, even during direct viewing with a telescope or with projective photography.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Verlengstuk-3-5-met-klemring-8-75cm-.jpg\" alt=\"TeleVue 3.5 inch Extension Tube\" title=\"\"><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Approximately 89 mm extra travel<\/li><li>2 inches on both sides<\/li><li>Hose clamp<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fits any 2 inch focuser; can be combined with the 50mm extension tube for intermediate distances.<\/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>Type<\/strong><\/td><td>Extension<\/td><\/tr><tr><td><strong>Extension<\/strong><\/td><td>3.5 inch, circa 89 mm<\/td><\/tr><tr><td><strong>Size<\/strong><\/td><td>2 inches<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find the complete product line for this merk at the <a href=\"\/en\/brands\/televue\/\">TeleVue merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>A 2-inch extension of 3.5 inches that bridges the light path of a zenith mirror.<\/p>","protected":false},"featured_media":107603,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[56,469,587],"product_tag":[],"class_list":["post-107598","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-telescoop-accessoires","product_cat-astro-fotografie","product_cat-camera-accessoires","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":107599,"url":"https:\/\/www.telescoop.nl\/en\/televue-verlengstuk-2-inch-50-mm\/","url_meta":{"origin":107598,"position":0},"title":"TeleVue 2-Inch 50mm Extension Tube","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"2 inch verlengstuk van 50 mm voor configuraties die extra lichtweg vragen.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Verlengstuk, 2\" zwart cilindervormig verlengstuk\/adaptersleeve met TeleVue-logo, messingkleurige binnenring en zijklem met duimschroef op een witte achtergrond.","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Verlengstuk-3-5-met-klemring-8-75cm-1-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Verlengstuk-3-5-met-klemring-8-75cm-1-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Verlengstuk-3-5-met-klemring-8-75cm-1-1.jpg?resize=525%2C300&ssl=1 1.5x, 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