{"id":93275,"date":"2026-01-10T11:00:01","date_gmt":"2026-01-10T10:00:01","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=93275"},"modified":"2026-08-25T15:12:11","modified_gmt":"2026-08-25T13:12:11","slug":"omegon-dust-caps-150mm-ota-optical-tube","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-stofkappen-150mm-ota-optische-buis\/","title":{"rendered":"Omegon Dust cap for 150 mm OTA (Optical Tube Assembly)"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Omegon Dust Cap for 150mm OTA (Optical Tube): seals the opening when the tube is not in use<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In a reflecting telescope, the primary mirror is at the bottom of the tube, with the opening as the only way out. Anything that enters through that opening will eventually hit the mirror. Dust can be blown away, but cleaning a mirror is work you'd rather not do, and it doesn't do the coating any favors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This cover seals the opening once you are finished observing. This keeps the inside of the tube clean and you need to touch the optics much less often.<\/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-Stofkappen-Stofkap-voor-6-OTA-2.jpg\" alt=\"Omegon 6-inch dust cap for optical tube opening\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Stofkappen-Stofkap-voor-6-OTA.jpg\" alt=\"Omegon 6-inch dust cap for optical tube opening\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Stofkappen-Stofkap-voor-6-OTA-1.jpg\" alt=\"Omegon 6-inch dust cap for optical tube opening\" title=\"\"><\/figure><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Fits a 6-inch (150 mm) pipe opening<\/li><li>Plastic version<\/li><li>Grip ribs on the side for hold with gloves<\/li><li>Slides over the tube and sits firmly in place<\/li><li>Suitable for storage and transport<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for 6-inch Newtonian tubes such as the Omegon Advanced 150\/750 and the ProNewton 153\/750. If in doubt, measure the outer diameter of your tube, as this differs from the mirror's aperture: an 8-inch Newtonian typically has an outer diameter around 235 mm.<\/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>Suitable for<\/strong><\/td><td>6-inch optical tubes<\/td><\/tr><tr><td><strong>Material<\/strong><\/td><td>Plastic<\/td><\/tr><tr><td><strong>Execution<\/strong><\/td><td>With grip ribs<\/td><\/tr><tr><td><strong>Type<\/strong><\/td><td>Transport and storage<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more maintenance articles for this brand on the <a href=\"\/en\/brands\/omegon\/\">Omegon brand page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Plastic dust cap for the opening of a 6-inch optical tube. With grip ribs on the side. Suitable for 6-inch Newton tubes such as the Omegon Advanced 150\/750 and the ProNewton 153\/750.<\/p>","protected":false},"featured_media":99456,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[3150,56],"product_tag":[],"class_list":["post-93275","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-schoonmaak-en-onderhoud","product_cat-telescoop-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":93284,"url":"https:\/\/www.telescoop.nl\/en\/omegon-stofkappen-254mm-ota-optische-buis\/","url_meta":{"origin":93275,"position":0},"title":"Omegon Dust Cap for 254 mm OTA (Optical Tube)","author":"","date":"10-01-2026","format":false,"excerpt":"Plastic dust cover for the opening of a 10-inch optical tube. With grip ribs on the side. Suitable for 10-inch tubes such as the Omegon Pro RC 254\/2000.","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-Stofkappen-Stofkap-voor-10-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":93279,"url":"https:\/\/www.telescoop.nl\/en\/omegon-stofkappen-203mm-ota-optische-buis\/","url_meta":{"origin":93275,"position":1},"title":"Omegon Dust cap for 203 mm OTA (Optical Tube)","author":"","date":"10-01-2026","format":false,"excerpt":"Plastic dust cover for the opening of an 8-inch optical tube. With grip ribs on the side. Suitable for 8-inch tubes from brands including Omegon, Sky-Watcher, and Vixen, including the Omegon Advanced X N 203\/1200.","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-Stofkappen-Stofkap-voor-8-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":93288,"url":"https:\/\/www.telescoop.nl\/en\/omegon-stofkappen-304mm-ota-optische-buis\/","url_meta":{"origin":93275,"position":2},"title":"Omegon Dust Cap for 304 mm OTA (Optical Tube)","author":"","date":"10-01-2026","format":false,"excerpt":"Plastic dust cover for the opening of a 12-inch optical tube. With grip ridges on the side. Suitable for 12-inch tubes such as the Omegon Pro Astrograph 304\/1200, the Advanced X N 304\/1500, and the ProDob N 304\/1500 DOB II.","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-Stofkappen-Stofkap-voor-12-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":107781,"url":"https:\/\/www.telescoop.nl\/en\/televue-tv-60-60-360-apochromat-refractor\/","url_meta":{"origin":93275,"position":3},"title":"TeleVue TV-60 \u2013 60\/360 Apochromatic Refractor","author":"Info telescoop","date":"29-04-2026","format":false,"excerpt":"This is just the tube (OTA), without mounting and tripod. You can choose the appropriate mounting and the accessories that come with it below. TeleVue TV-60: ultra-compact 60\/360 f\/6 achromatic lens with a tube length of approximately 25 cm and a field of view of up to 4.3 degrees. Travel-APO of lasting quality, supplied with protective case.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Apochromatische refractor AP 60\/360 TV60 OTA compacte APO refractorbuis in zwarte uitvoering met goudkleurige ringen en montagevoet op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Apochromatische-refractor-AP-60-360-TV60-OTA-3.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Apochromatische-refractor-AP-60-360-TV60-OTA-3.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Apochromatische-refractor-AP-60-360-TV60-OTA-3.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Apochromatische-refractor-AP-60-360-TV60-OTA-3.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":91873,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-newton-150-750-horizon-ota\/","url_meta":{"origin":93275,"position":4},"title":"Omegon Pro Newton 150\/750 Horizon OTA","author":"","date":"01-01-2026","format":false,"excerpt":"This is just the tube (OTA), without mounting and tripod. You can choose the appropriate mounting and the accessories that come with it below. The Omegon Horizon CR N 150\/750 OTA comes with an LED viewfinder, 25 mm and 10 mm Pl\u00f6ssl eyepieces, a 2x Barlow lens, an extension tube, a smartphone adapter and a Bluetooth splitter: the complete tube, you choose\u2026","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-Telescoop-Horizon-CR-N-150-750-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":112453,"url":"https:\/\/www.telescoop.nl\/en\/tweedehands-sky-watcher-heritage-150p-flextube\/","url_meta":{"origin":93275,"position":5},"title":"Used Sky-Watcher Heritage-150P FlexTube","author":"Info telescoop","date":"30-09-2026","format":false,"excerpt":"The used Sky-Watcher Heritage-150P FlexTube is a tabletop Dobson telescope with a 150 mm parabolic mirror and a retractable tube, inspected in our own workshop. It is in good condition; a retouched copy. It comes standard with 25 mm and 10 mm eyepieces, a red dot finder and a collimation cap; what differs from this example is stated in the description.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Sky-Watcher Dobson Teleskop N 150\/750 Heritage FlexTube DOB","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/06\/Skywatcher-Dobson-telescoop-N-150-750-Heritage-FlexTube-DOB-1.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/93275","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=93275"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/99456"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=93275"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=93275"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=93275"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=93275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}