{"id":33788,"date":"2025-11-14T16:27:02","date_gmt":"2025-11-14T15:27:02","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=33788"},"modified":"2026-07-18T13:43:09","modified_gmt":"2026-07-18T11:43:09","slug":"william-optics-fluorostar-120-780-apo-gold-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-fluorostar-120-780-apo-gold-ota\/","title":{"rendered":"William Optics Fluorostar 120\/780 APO Gold OTA"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Fluorostar 120 in gold: triplet with lanthanum glass<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>William Optics Fluorostar 120 Gold<\/strong> delivers a calm, clear, and true-to-color image. The triplet lens made of FPL-53 and lanthanum glass keeps stars point-like without chromatic aberration: double stars appear beautifully separated, and cloud bands and ring structure are immediately noticeable on Jupiter and Saturn.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" data-id=\"33789\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-120-780-Apochromatische-refractor-AP-Fluorostar-Gold-OTA-2.jpg\" alt=\"William Optics Fluorostar 120 Gold Apochromatic Triplet Refractor, Full Frame\" class=\"wp-image-33789\" title=\"\"><\/figure>\n<\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8d39b2df wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-120-780-Apochromatische-refractor-AP-Fluorostar-Gold-OTA-8.jpg\" alt=\"The Fluorostar 120 Gold with Losmandy dovetail and handle\" class=\"wp-image-33795\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Lots of light for deep-sky and planets<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The 120mm aperture at a 780mm focal length (f\/6.5) captures a lot of light: short exposures for nebulae and galaxies, and enough resolution for serious planetary work, visually and photographically. The Losmandy dovetail securely mounts the tube on a medium-duty equatorial mount, the Vixen\/Sky-Watcher accessory shoe accepts the guidescope, and the Bahtinov mask makes focusing precise.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>In the box<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Optical tube Fluorostar 120\/780 triplet, gold<\/li>\n\n\n\n<li>Losmandy-style dovetail<\/li>\n\n\n\n<li>Handle<\/li>\n\n\n\n<li>Vixen\/Sky-Watcher accessory shoe<\/li>\n\n\n\n<li>Bahtinov mask<\/li>\n\n\n\n<li>Padded transport bag<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Featured accessories<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-accessories\/astro-photography\/other-astrophotography-accessories\/\">William Optics Flat68III flattener<\/a> (\u20ac869) levels the field to full-frame; a UniGuide 50mm guidescope (from \u20ac189) enables long exposures.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">For whom yes, for whom no<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">For: serious astrophotographers and visual observers looking for a large triplet that can handle both disciplines. Not for: those seeking the exact same optics where color doesn't matter; the Red and Space Gray versions are identically equipped.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Optical design<\/td><td>Apochromat, FPL-53 triplet with lanthanum glass<\/td><\/tr><tr><td>Opening<\/td><td>120 mm<\/td><\/tr><tr><td>Focal length<\/td><td>780 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/6,5<\/td><\/tr><tr><td>Attachment<\/td><td>Losmandy-style dovetail with handle<\/td><\/tr><tr><td>Accessory shoe<\/td><td>Vixen\/Sky-Watcher<\/td><\/tr><tr><td>Focus assist<\/td><td>Bahtinov mask<\/td><\/tr><tr><td>Execution<\/td><td>OTA (empty tube), Gold<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Unsure about the right tube for your camera and mount? The <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-selection-aid\/\">telescope selection aid<\/a> helps you choose. Also view all <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/refracting-telescopes\/\">Refracting telescopes<\/a> and the full range of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/william-optics\/\">William Optics<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>William Optics Fluorostar 120 Gold: FPL-53 triplet apochromatic 120\/780 f\/6.5 with lanthanum glass. Supplied with Losmandy dovetail, handle, accessory shoe, Bahtinov mask, and carrying case.<\/p>","protected":false},"featured_media":97301,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[51,428,531,3175,567],"product_tag":[],"class_list":["post-33788","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-gevorderd","product_cat-refractor-ota","product_cat-refractor-telescopen","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":33800,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-fluorostar-120-780-apo-red-ota\/","url_meta":{"origin":33788,"position":0},"title":"William Optics Fluorostar 120\/780 APO Red OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics Fluorostar 120 Red: FPL-53 triplet apochromaat 120\/780 f\/6,5 met lanthaanglas. Geleverd met Losmandy-zwaluwstaart, handvat, accessoireschoen, Bahtinov-masker en transporttas.","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\/William-Optics-120-780-Apochromatische-refractor-AP-Fluorostar-Red-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33809,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-fluorostar-120-780-apo-space-gray-ota\/","url_meta":{"origin":33788,"position":1},"title":"William Optics Fluorostar 120\/780 APO Space Gray OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics Fluorostar 120 Space Gray: FPL-53 triplet apochromaat 120\/780 f\/6,5 met lanthaanglas. Geleverd met Losmandy-zwaluwstaart, handvat, accessoireschoen, Bahtinov-masker en transporttas.","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\/William-Optics-120-780-Apochromatische-refractor-AP-Fluorostar-Space-Gray-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33784,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-91-540-refractor-apo-space-gray-ota\/","url_meta":{"origin":33788,"position":2},"title":"William Optics Fluorostar 91\/540 Refractor APO Space Gray OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics Fluorostar 91 Space Gray: FPL-53 triplet apochromat 91\/540 f\/5.9 with lanthanum glass and 1:10 focuser. 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