{"id":34142,"date":"2025-11-17T13:22:10","date_gmt":"2025-11-17T12:22:10","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=34142"},"modified":"2026-07-20T14:26:38","modified_gmt":"2026-07-20T12:26:38","slug":"william-optics-90-125-zenith-prism-cat-51-wifd","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-90-125-zenitprisma-cat-51-wifd\/","title":{"rendered":"William Optics 90\u00b0 1.25\" Zenith prism Cat 51 WIFD"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>William Optics 90\u00b0 1,25\" Zenitprisma Cat 51 WIFD: comfortabel en rechtop kijken door je Cat 51 WIFD<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dit William Optics zenitprisma is de visuele aanvulling op de Cat 51 WIFD. Het buigt het licht 90 graden af zodat je ontspannen van boven in het oculair kijkt, en zet het beeld rechtop: vogels, landschap en de maan zie je precies zoals buiten.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Het BaK-4 prisma draagt een dielektrische coating die de lichttransmissie hoog en reflecties laag houdt. De meegeleverde 2 naar 1,25 inch adapter en ringklem monteren het prisma stevig en krasvrij op de WIFD-focuser.<\/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-90\u00b0-125-Zenitprism-Cat-51-WIFD.jpg\" alt=\"William Optics 90 graden zenitprisma voor Cat 51 WIFD\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-90\u00b0-125-Zenitprisma-Cat-51-WIFD-2.jpg\" alt=\"William Optics 90 graden zenitprisma voor Cat 51 WIFD\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/William-Optics-90\u00b0-125-Zenitprisma-Cat-51-WIFD-1.jpg\" alt=\"William Optics 90 graden zenitprisma voor Cat 51 WIFD\" title=\"\"><\/figure><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Waarom een oprichtprisma op een astrograaf<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">De Cat 51 is als astrograaf gebouwd, maar met dit prisma en een oculair heb je er een compacte spotting scope en reiskijker bij. Twee instrumenten in een koffer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Combineer met een 1,25 inch oculair met lage vergroting voor het maximale beeldveld.<\/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 Cat 51 WIFD-bezitters die ook visueel en overdag willen kijken<\/li><li>\u2717 Bezitters van de klassieke RedCat 51: kies de uitvoering met M56-aansluiting<\/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>Type<\/strong><\/td><td>Zenitprisma 90 graden, oprichtend<\/td><\/tr><tr><td><strong>Glass<\/strong><\/td><td>BaK-4, dielektrische coating<\/td><\/tr><tr><td><strong>Assembly<\/strong><\/td><td>2 naar 1,25 inch adapter met ringklem (Cat 51 WIFD)<\/td><\/tr><tr><td><strong>Image<\/strong><\/td><td>Upright, laterally correct<\/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 90 graden zenitprisma voor de Cat 51 WIFD: dielektrisch gecoat BaK-4 prisma met 2 naar 1,25 inch adapter en ringklem. Rechtopstaand beeld voor natuur en maan.<\/p>","protected":false},"featured_media":97578,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[56,591,3142],"product_tag":[],"class_list":["post-34142","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-telescoop-accessoires","product_cat-diagonalen","product_cat-zenitspiegels-en-zenitprisma-diagonals","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":34141,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-90-125-zenitprisma-redcat\/","url_meta":{"origin":34142,"position":0},"title":"William Optics 90\u00b0 1.25\" Zenith prism RedCat","author":"","date":"17-11-2025","format":false,"excerpt":"William Optics 90 graden zenitprisma voor de RedCat 51: BAK-4 prisma met antireflectiecoating, M56-aansluiting met ringklem en 1,25 inch oculairzijde. 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Geleverd met Bahtinov-masker, prismabalk 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-51250-Apochromatische-refractor-SpaceCat-WIFD-OTA-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33659,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-ap-51-250-apochromatische-refractor-redcat-wifd\/","url_meta":{"origin":34142,"position":2},"title":"William Optics AP 51\/250 Apochromatic Refractor RedCat WIFD OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics RedCat 51 WIFD: the most famous compact astrograph with a four-element Petzval optical design (FPL53\/FPL51) and internal focuser. Flat, color-corrected image up to full-frame. Delivered with Bahtinov mask, prism rail, and carrying bag.","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-51250-Apochromatische-refractor-RedCat-WIFD-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33652,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-ap-51-178-apochromatische-refractor-minicat-wifd-ota\/","url_meta":{"origin":34142,"position":3},"title":"William Optics AP 51\/178 Apochromatic refractor MiniCat WIFD OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics MiniCat 51\/178 WIFD: ultra-compact f\/3.5 apochromat with internal focuser for wide-field astrophotography. Supplied with Bahtinov mask, dew shield, Arca\/Vixen dovetail, 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-AP-51178-Apochromatische-refractor-MiniCat-WIFD-OTA-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33639,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-ap-108-518-apochromatische-refractor-ultracat-wifd\/","url_meta":{"origin":34142,"position":4},"title":"William Optics AP 108\/518 Apochromatic Refractor UltraCat WIFD OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics UltraCat 108 WIFD: full-frame vlaggenschip 108\/518 f\/4,8 met ge\u00efntegreerde Petzval-corrector, rotator, kantelflens en interne focuser. 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Rechtopstaand, natuurgetrouw beeld voor natuur en hemel.","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-45%C2%B0-125-op-125-Amici-prisma.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/34142","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=34142"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/97578"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=34142"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=34142"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=34142"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=34142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}