{"id":33869,"date":"2025-11-15T13:31:10","date_gmt":"2025-11-15T12:31:10","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=33869"},"modified":"2026-07-18T13:40:57","modified_gmt":"2026-07-18T11:40:57","slug":"william-optics-zenithstar-61-360-apo-ii-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota\/","title":{"rendered":"William Optics ZenithStar 61\/360 APO II OTA with Flattener &amp; Guidescope"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>The complete ZenithStar 61 II: flattener and guidescope included<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This performance of the <strong>William Optics ZenithStar 61 II<\/strong> It's the complete photo set: the same FPL-53 apochromat, but delivered with a field flattener and UniGuide 32mm guidescope. Unpack, connect your camera, and start shooting, without having to search for loose accessories.<\/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=\"33870\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-2-1.jpg\" alt=\"William Optics ZenithStar 61 II set with flattener and guidescope, full view\" class=\"wp-image-33870\" 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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-5-1.jpg\" alt=\"The ZenithStar 61 II set with UniGuide 32 mm guidescope\" class=\"wp-image-33873\" 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\">Everything for guided astrophotography<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The 61mm FPL-53 doublet with a 360mm focal length (f\/5.9) provides a wide, color-pure field. The included flattener brings stars to sharp focus all the way to the corners on any DSLR or mirrorless camera, and the UniGuide 32mm guidescope allows for long exposures on an equatorial mount or star tracker right out of the box. Visual observation is also possible via the 2 to 1.25 inch adapter.<\/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 ZenithStar 61\/360 II<\/li>\n\n\n\n<li>Field flattener<\/li>\n\n\n\n<li>UniGuide 32 mm guidescope<\/li>\n\n\n\n<li>Tube Rings<\/li>\n\n\n\n<li>Arca-Swiss and Vixen-Style dovetail<\/li>\n\n\n\n<li>2 inch to 1.25 inch adapter<\/li>\n\n\n\n<li>Soft carrier 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\">A <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-accessories\/astro-photography\/other-astrophotography-accessories\/\">William Optics M48 Camera Adapter<\/a> For your camera angle, the photo train makes it complete.<\/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\">Yes: for those who want to start with guided astrophotography all at once; the set is more affordable than the individual parts. No: for those who already have a flattener or guidescope; choose the bare OTA version and save the difference.<\/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 doublet<\/td><\/tr><tr><td>Opening<\/td><td>61 mm<\/td><\/tr><tr><td>Focal length<\/td><td>360 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/5,9<\/td><\/tr><tr><td>Flattener<\/td><td>Included<\/td><\/tr><tr><td>Guidescope<\/td><td>UniGuide 32 mm (included)<\/td><\/tr><tr><td>Ocula Connection<\/td><td>2 inch, with 1.25 inch adapter<\/td><\/tr><tr><td>Execution<\/td><td>OTA-set (loose tube with accessories)<\/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 ZenithStar 61 II set: FPL-53 Apochromatic 61\/360 f\/5.9 complete with field flattener, UniGuide 32mm guidescope, tube rings, dovetail, and carrying case. Ready for guided astrophotography.<\/p>","protected":false},"featured_media":97360,"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-33869","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":33858,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-zenithstar-61-360-apo-ii-ota-2\/","url_meta":{"origin":33869,"position":0},"title":"William Optics ZenithStar 61\/360 APO II OTA","author":"Info telescoop","date":"15-11-2025","format":false,"excerpt":"William Optics ZenithStar 61 II, scope OTA: compact FPL-53 apochromat 61\/360 f\/5.9 for astrophotography and visual use. Supplied with tube rings, Arca\/Vixen dovetail, and 2 to 1.25 inch adapter.","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-AP-61-360-ZS61-II-Apochromatische-refractor-ZenithStar-OTA-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33881,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-zenithstar-73-430-apo-gold-ota\/","url_meta":{"origin":33869,"position":1},"title":"William Optics ZenithStar 73\/430 APO Gold OTA","author":"","date":"15-11-2025","format":false,"excerpt":"William Optics ZenithStar 73 Gold: FPL-53 apochromaat 73\/430 f\/5,9 voor mobiele astrofotografie. Geleverd met buisringen, Vixen-zwaluwstaart, handvat met prismaklem, Bahtinov-masker en draagtas.","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-AP-73-430-73-Apochromatische-refractor-Super-ZenithStar-Gold-OTA-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34085,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-flat61r-61-field-flattener-zenithstar\/","url_meta":{"origin":33869,"position":2},"title":"William Optics Flat61R 61 Field Flattener for ZenithStar","author":"Info telescoop","date":"16-11-2025","format":false,"excerpt":"William Optics Flat61R flattener for the ZenithStar 61 and GuideStar 61: adjustable M54 connection, M48 camera side, and integrated M48 filter thread. Round stars all the way to the corners.","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-Flat61R-61-Beeldveldegalisator-voor-ZenithStar-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34051,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-61-guidescope-guide-star-apo-goud\/","url_meta":{"origin":33869,"position":3},"title":"William Optics 61 Guidescope Guide Star Apo Gold","author":"","date":"16-11-2025","format":false,"excerpt":"William Optics GuideStar 61 apo guidescope (gold) with FPL-53 lens: accurate guiding for refractors from 700 to 1200 mm. Includes Vixen rail and carrying case.","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-Guidescope-Guide-Star-Apo-61-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34058,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-61-guidescope-guide-star-apo-blue\/","url_meta":{"origin":33869,"position":4},"title":"William Optics 61 Guidescope Guide Star Apo Blue","author":"","date":"16-11-2025","format":false,"excerpt":"William Optics GuideStar 61 apo guidescope (blauw) met FPL-53-objectief: nauwkeurige guiding voor refractors van 700 tot 1200 mm. Inclusief Vixen-rail 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-Guidescope-Guide-Star-Apo-61-10.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34064,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-61mm-2-4-inch-apo-guide-star-guidescope-rood\/","url_meta":{"origin":33869,"position":5},"title":"William Optics 61 mm 2.4\" APO Guide Star Guidescope Red","author":"","date":"16-11-2025","format":false,"excerpt":"William Optics GuideStar 61 apo guidescope (rood) met FPL-53-objectief: nauwkeurige guiding voor refractors van 700 tot 1200 mm. Inclusief Vixen-rail 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-Guidescope-Guide-Star-Apo61-6.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/33869","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=33869"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97360"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=33869"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=33869"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=33869"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=33869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}