{"id":34143,"date":"2025-11-17T13:22:14","date_gmt":"2025-11-17T12:22:14","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34143"},"modified":"2026-07-20T14:26:39","modified_gmt":"2026-07-20T12:26:39","slug":"william-optics-40mm-2-swan-eyepiece","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-40mm-2-swan-oculair\/","title":{"rendered":"William Optics 40mm 2\" SWAN Eyepiece"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>William Optics 40mm 2\" SWAN Oculair: een raam op de ruimte<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Het William Optics SWAN 40 mm is een 2 inch overzichtsoculair met een schijnbaar beeldveld van 72 graden. De combinatie van lange brandpuntsafstand en breed veld geeft het grootst mogelijke stuk hemel in een blik: uitgestrekte nevels, sterrenvelden en de Melkweg op hun mooist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Het ontwerp met vijf lenzen is meervoudig gecoat en de lensranden zijn gezwart tegen strooilicht. Met 28 mm eye relief kijk je ontspannen, ook met bril, en de opvouwbare oogschelp stel je op je eigen kijkpositie in. De filterdraad neemt 2 inch filters direct op.<\/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\/2025\/11\/William-Optics-40mm-2-SWAN-Oculair.jpg\" alt=\"William Optics SWAN 40 mm 2 inch oculair\" title=\"\"><\/figure><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Which telescopes<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Het oculair vraagt een 2 inch focuser of diagonaal. Op telescopen met een langzame f-verhouding presteert het veld het strakst; op zeer snelle optiek worden randsterren zachter, eigen aan dit prijssegment.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Combineer het oculair met de Dura Bright 2 inch diagonaal voor het complete visuele overzichtspakket.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">For whom yes and for whom no<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>\u2713 Deep-sky waarnemers die maximaal overzicht zoeken<\/li><li>\u2713 Brildragers, dankzij 28 mm eye relief<\/li><li>\u2717 Bezitters van uitsluitend 1,25 inch aansluitingen<\/li><\/ul>\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>Focal length<\/strong><\/td><td>40 mm<\/td><\/tr><tr><td><strong>Apparent field of view<\/strong><\/td><td>72 degrees<\/td><\/tr><tr><td><strong>Optics<\/strong><\/td><td>5 lenzen, meervoudig gecoat, gezwarte randen<\/td><\/tr><tr><td><strong>Eye relief<\/strong><\/td><td>28 mm<\/td><\/tr><tr><td><strong>Mount<\/strong><\/td><td>2 inch, met filterdraad<\/td><\/tr><tr><td><strong>Eyecup<\/strong><\/td><td>Foldable<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find more accessories for this merk at the <a href=\"\/en\/brands\/william-optics\/\">William Optics merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>William Optics SWAN 40 mm 2 inch oculair: 72 graden beeldveld, 5 lenzen, 28 mm eye relief, multicoating en filterdraad. Maximaal overzicht voor deep-sky.<\/p>","protected":false},"featured_media":97573,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[3131,56],"product_tag":[],"class_list":["post-34143","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-groothoek-oculairen-wide-field","product_cat-telescoop-accessoires","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":[34220],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":34220,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-90-2-diagonaal-spiegel-dura-bright\/","url_meta":{"origin":34143,"position":0},"title":"William Optics 90\u00b0 2\" Diagonal Mirror Dura Bright","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics Dura Bright diagonaalspiegel 90 graden 2 inch: 99% dielektrische reflectie, 12 mm spiegel op 1\/12 lambda, carbon behuizing, compressiering, filterdraad en 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-90%C2%B0-2-Diagonaal-Spiegel-Dura-Bright-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34147,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-400mm-losmandy-swan-series-2\/","url_meta":{"origin":34143,"position":1},"title":"William Optics 400mm Losmandy Swan Series","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 400 mm Losmandy-zwaluwstaart uit de Swan-serie (goudkleurig): breed, stijf profiel voor zware buizen en complete fototreinen.","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-400mm-Losmandy-Swan-Series-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34133,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-400mm-losmandy-swan-series\/","url_meta":{"origin":34143,"position":2},"title":"William Optics 400mm Losmandy Swan Series","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 400 mm Losmandy-style dovetail from the Swan series (red): wide, stiff profile for heavy tubes and complete photo trains.","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-400mm-Losmandy-Swan-Series-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":34161,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-400mm-losmandy-swan-series-3\/","url_meta":{"origin":34143,"position":3},"title":"William Optics 400mm Losmandy Swan Series","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 400 mm Losmandy-zwaluwstaart uit de Swan-serie (grijs): breed, stijf profiel voor zware buizen en complete fototreinen.","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-400mm-Losmandy-Swan-Series-6.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":32345,"url":"https:\/\/www.telescoop.nl\/en\/bresser-plossl-oculair-40mm-1-25-inch\/","url_meta":{"origin":34143,"position":4},"title":"Bresser Pl\u00f6ssl eyepiece 40mm 1.25 inches","author":"","date":"02-11-2025","format":false,"excerpt":"Bresser Plossl oculair 40 mm met vier volledig meervoudig gecoate lenzen, 46 graden beeldveld, metalen behuizing en filterdraad. Vatting 1,25 inch.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":90412,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-38-mm-panaview-2-oculair-70-beeldveld\/","url_meta":{"origin":34143,"position":5},"title":"Sky-Watcher 38 mm PanaView Eyepiece (70\u00b0, 2 inch)","author":"","date":"29-11-2025","format":false,"excerpt":"2 inch widefield-oculair met 38 mm brandpuntsafstand, 70 graden beeldveld en 28 mm eye relief. Vijf meervoudig gecoate lenzen voor weidse deep-sky panorama's.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34143","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=34143"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97573"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34143"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34143"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34143"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}