{"id":90562,"date":"2025-11-30T12:50:04","date_gmt":"2025-11-30T11:50:04","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=90562"},"modified":"2026-07-20T00:20:30","modified_gmt":"2026-07-19T22:20:30","slug":"sky-watcher-21-5cm-extension-tube-3-8","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/sky-watcher-21-5cm-extension-tube-3-8\/","title":{"rendered":"Sky-Watcher 21.5 cm Extension Tube - 3\/8 inch Mount"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Sky-Watcher 21,5 cm halfzuil: vrij zicht op het zenit<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Deze aluminium halfzuil plaats je tussen je statief en monteringkop. De extra 21,5 cm tilt de kop boven de statiefpoten uit, waardoor je ook objecten recht boven je hoofd bekijkt zonder dat de buis of camera een poot raakt. Vooral met refractors en trackers maakt dat het waarnemen merkbaar comfortabeler.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-AZ-5-Zuilverlenging-Statief-verlengbuis-voor-Deluxe.jpg\" alt=\"Skywatcher AZ-5 column extension aluminum tripod extension tube with black column and white ends on white background.\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">De zuil heeft aan beide zijden een 3\/8 inch aansluiting (male en female) en past daarmee tussen elk statief en elke kop met fotoschroefdraad, zoals de AZ-5, AZ-GTi en Star Adventurer-serie. Het aluminium houdt het gewicht laag zonder aan stijfheid in te leveren.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>21,5 cm extra hoogte, \u00d870 mm<\/li>\n\n\n<li>3\/8 inch male en female aansluiting<\/li>\n\n\n<li>Licht en stijf aluminium<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Geschikt voor elke combinatie van statief en kop met 3\/8 inch aansluiting, waaronder de Sky-Watcher AZ-5, AZ-GTi en Star Adventurer-familie.<\/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>Halfzuil (extension tube)<\/td><\/tr><tr><td><strong>Height<\/strong><\/td><td>215 mm<\/td><\/tr><tr><td><strong>Diameter<\/strong><\/td><td>70 mm<\/td><\/tr><tr><td><strong>Material<\/strong><\/td><td>Aluminum<\/td><\/tr><tr><td><strong>Connection<\/strong><\/td><td>3\/8 inch male en female<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The disassembly of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/sky-watcher\/\">Sky-Watcher<\/a> is a base that will last you for years. Unsure which mount is best for your telescope and your goals? Contact us, we'd be happy to help you decide.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminium halfzuil van 21,5 cm met 3\/8 inch aansluiting aan beide zijden. Tilt je kop boven de statiefpoten uit, zodat je ook recht boven je hoofd waarneemt zonder botsende buis.<\/p>","protected":false},"featured_media":98046,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[56,499],"product_tag":[],"class_list":["post-90562","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","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":33120,"url":"https:\/\/www.telescoop.nl\/en\/ioptron-skyhunter-pier-extension\/","url_meta":{"origin":90562,"position":0},"title":"iOptron SkyHunter Pier-Extension","author":"","date":"08-11-2025","format":false,"excerpt":"iOptron SkyHunter Pier-Extension wordt geleverd met aluminium halfzuil van 190 mm met 3\/8 inch schroefdraad: extra werkhoogte en vrije ruimte voor de SkyHunter-montering.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":91527,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-eq6-extension-tube-refractor\/","url_meta":{"origin":90562,"position":1},"title":"Sky-Watcher Extension tube for EQ6 series","author":"","date":"21-12-2025","format":false,"excerpt":"Verlenghuls die de EQ6-kop circa 20 cm (8 inch) hoger plaatst: comfortabeler kijken door lange refractors en meer vrije draairuimte boven de statiefpoten.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":90495,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-az5-deluxe-mount-tripod\/","url_meta":{"origin":90562,"position":2},"title":"Sky-Watcher AZ5 Deluxe Alt-Azimutal Mount with Aluminum Tripod","author":"","date":"30-11-2025","format":false,"excerpt":"Gebruiksvriendelijke azimutale montering voor telescopen tot 5 kg, met wormwiel-fijnregeling op beide assen, slipkoppeling en aluminium statief. Ook geschikt voor natuurobservatie overdag.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-AZ5-Montering-Deluxe-met-statief-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":90475,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-16-inch-extension-tube-eq5-heq5\/","url_meta":{"origin":90562,"position":3},"title":"Sky-Watcher 16 inch (40.6 cm) Extension Pier for EQ5 &amp; HEQ5","author":"","date":"30-11-2025","format":false,"excerpt":"Stalen verlengzuil van circa 40 cm die tussen statief en EQ5- of HEQ5-kop komt. Geeft lange buizen vrije ruimte boven de statiefpoten en jou een comfortabele, rechtopstaande kijkhouding.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":94383,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-kolossus-montering-bundel-halfzuil-aluminium-driepootstatief\/","url_meta":{"origin":90562,"position":4},"title":"Omegon Pro Colossus Mount Bundle with Half Column and Aluminum Tripod Stand","author":"Info telescoop","date":"14-01-2026","format":false,"excerpt":"Omegon Pro Colossus Mount comes with parallelogram crank arm, counterweight bar, 2x counterweights of 3.7 kg, L-rail with \u00bc inch thread, dual handles, stainless steel tripod, half column and transport bag - perfect for large binoculars up to 5 kg with intuitive control from horizon to zenith.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Pro-Kolossus-montering-bundel-met-halfzuil-en-statief-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":90541,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-az5-rvs-statief-1-75-inch\/","url_meta":{"origin":90562,"position":5},"title":"Sky-Watcher AZ5 1.75 inch Stainless Steel Tripod (3\/8 inch Mount)","author":"","date":"30-11-2025","format":false,"excerpt":"Heavy-duty stainless steel tripod with 45mm legs and a 3\/8\" thread. Supports up to 30kg and fits the AZ5, AZ-GTi, Star Adventurer, and other heads with photo threads.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Skywatcher-38-inch-Statief-Roestvrij-staal-met-bevestigingsschroef-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/90562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=90562"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98046"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=90562"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=90562"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=90562"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=90562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}