{"id":48144,"date":"2024-11-20T13:52:21","date_gmt":"2024-11-20T12:52:21","guid":{"rendered":"https:\/\/www.ganymedes.nl\/?post_type=product&#038;p=48144"},"modified":"2026-03-03T19:31:47","modified_gmt":"2026-03-03T18:31:47","slug":"william-optics-cat-91-wifd-f-4-9","status":"publish","type":"product","link":"https:\/\/dev4-ganymedes.nl\/en\/product\/william-optics-cat-91-wifd-f-4-9\/","title":{"rendered":"William Optics Cat 91 WIFD f\/4.9"},"content":{"rendered":"<h2>De kat met een ziel van het midden formaat<\/h2>\n<p>De William Optics Cat 91 WIFD f\/4.9 is een geavanceerde apochromatische refractor op maat gemaakt voor full-frame en medium-format camera&#8217;s. Deze nieuwste toevoeging aan de RedCat-serie combineert draagbaarheid met superieure optische prestaties, waardoor het een veelzijdige tool is voor het vastleggen van adembenemende details in deep-sky objecten.<\/p>\n<p><a href=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-48149 size-full\" title=\"William Optics Cat 91 WIFD f\/4.9\" src=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2.png\" alt=\"William Optics Cat 91 WIFD f\/4.9\" width=\"800\" height=\"439\" srcset=\"https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2.png 800w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-324x178.png 324w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-416x228.png 416w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-300x165.png 300w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-768x421.png 768w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-140x77.png 140w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-2-500x274.png 500w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p>Het innovatieve 5-elementen Petzval-ontwerp, onderzocht en ontwikkeld door WO, herdefinieert telescoopoptica. Dit geavanceerde systeem bereikt een vlekkeloos spotdiagram over een middelgrote beeldcirkel. Bevat 2 Super ED-lenzen, 1 ED-lens en lanthaanlenzen met geavanceerde, volledig multi-coating, die scherpe, levendige beelden met levensechte kleuren leveren en chromatische aberratie aanzienlijk verminderen. The Petzval design inherently flattens the field, eliminating the need for an external field flattener.<\/p>\n<p><a href=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-48151 size-vp_md\" src=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-800x800.png\" alt=\"\" width=\"800\" height=\"800\" srcset=\"https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-800x800.png 800w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-324x324.png 324w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-100x100.png 100w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-416x416.png 416w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-300x300.png 300w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-1030x1030.png 1030w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-768x768.png 768w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-132x132.png 132w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-500x500.png 500w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02-1280x1280.png 1280w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-FOV-cat91-C-02.png 1495w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/p>\n<p class=\"h4\"><a href=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-48154 size-medium\" title=\"William Optics Cat 91 WIFD f\/4.9\" src=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-300x200.webp\" alt=\"William Optics Cat 91 WIFD f\/4.9\" width=\"300\" height=\"200\" srcset=\"https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-300x200.webp 300w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-324x216.webp 324w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-416x277.webp 416w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-768x512.webp 768w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-140x93.webp 140w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-500x334.webp 500w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov-800x534.webp 800w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-bahtinov.webp 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"h4\">Integrated Bahtinov mask<\/p>\n<p>Laser engraved on high-definition and stable optical PMMA.<\/p>\n<p>Enhances astrophotography experience with quick and accurate adjustments.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting.webp\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-48160 size-medium alignleft\" src=\"https:\/\/www.ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-300x248.webp\" alt=\"\" width=\"300\" height=\"248\" srcset=\"https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-300x248.webp 300w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-324x268.webp 324w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-416x344.webp 416w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-768x636.webp 768w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-140x116.webp 140w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-500x414.webp 500w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting-800x662.webp 800w, https:\/\/dev4-ganymedes.nl\/wp-content\/uploads\/2024\/11\/WO-Cat-91-WIFD-whatsinbox-mounting.webp 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>CAT Draag hendel met sleuf<\/p>\n<p>Crafts voor verbeterde draagbaarheid en veelzijdigheid.<\/p>\n<p>Montagering<br \/>\nOntworpen voor naadloze functionaliteit zonder afbreuk te doen aan de stabiliteit. Deze innovatieve ring is ontworpen met brede contactoppervlakken en zorgt voor een veilige pasvorm terwijl het snel en eenvoudig los te maken is.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft\" src=\"https:\/\/williamoptics.com\/cdn\/shop\/files\/WIFD-grey_line.gif?v=1727934296&amp;width=1409\" width=\"300\" height=\"213\" \/><\/p>\n<p>Interne focuser<\/p>\n<p>NIEUWE interne focuser. Ons nieuwe ontwerp omvat de gepatenteerde WO-center focuser met nauwkeurige interne verschuiving van vaste optica om beeldverschuiving te voorkomen. Het ge\u00efntegreerde positiekijkvenster op de focuser biedt directe verificatie van de gegradueerde numerieke weergave. Het soepele tandheugel- en rondselontwerp is in de focuser verwerkt om superfijne afstelling te bieden voor kritische focus. De interne beweging van de optische elementen is beschermd tegen de elementen en kan niet uit de lijn raken. De herverdeling van het gewicht zorgt voor een betere balans tijdens beeldvormingssessies.<\/p>\n<h3>Levering van de William Optics Cat 91 WIFD f\/4.9 omvat:<\/h3>\n<ul>\n<li>91 mm APO Petzval Telescoop<\/li>\n<li>Buisringen<\/li>\n<li>Draaghendel<\/li>\n<li>Vixen zwaluwstaart<\/li>\n<li>Bahtinov masker met dop<\/li>\n<li>M48 en M54 adapter<\/li>\n<li>Draagtas<\/li>\n<li>Inbussleutelsetje<\/li>\n<\/ul>\n<h4>Plaats je bestelling online of kom langs in de winkel<\/h4>\n<p>Heb je gevonden wat je zoekt en wil je bijvoorbeeld de Cat 91 WIFD bestellen? Dan doe je dit heel eenvoudig online. Bekijk je deze producten liever in het echt voordat je ze koopt? Ook dat is bij ons mogelijk. Je bent van harte welkom in onze showroom in Amstelveen van maandag tot vrijdag tussen 10.00 en 17.00 uur. Op zaterdag is de showroom ook geopend, maar dan van 10.00 tot 16.30 uur. Voor meer informatie en advies kun je ook telefonisch contact met ons opnemen via <a href=\"tel:0031206412083\">020-6412083<\/a>. We helpen je graag.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Met de Cat 91 WIFD Astrograph biedt William een \u200b\u200btelescoop met zeer goede correctie voor astrofotografie tot en met full frame-formaat. D=91 mm F=448 (f\/4.9) Petzval 5 elementen lens ontwerp!<\/p>\n","protected":false},"featured_media":48168,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_vp_format_video_url":"","_vp_image_focal_point":[],"_vp_custom_popup_image":0,"_vp_format_audio_url":"","_vp_custom_thumbnail":0,"_vp_custom_thumbnail_focal_point":[],"_vp_hover_thumbnail":0,"_vp_hover_thumbnail_focal_point":[]},"product_brand":[],"product_cat":[252,243,256,244,415,341,342,251,242,414],"product_tag":[],"class_list":{"0":"post-48144","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-telescopes-refractor-all-refractor-telescopes-en","7":"product_cat-telescopes-all-telescopes-en","8":"product_cat-telescopes-refractor-apochromatic-doublet-en","9":"product_cat-telescopes-astrophotography-telescopes-en","10":"product_cat-brands-william-optics-cat-series-en","11":"product_cat-no-category-en","12":"product_cat-brands-en","13":"product_cat-telescopes-refractor-telescopes-en","14":"product_cat-telescopes-en","15":"product_cat-brands-william-optics-en","17":"first","18":"onbackorder","19":"taxable","20":"shipping-taxable","21":"purchasable","22":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>William Optics Cat 91 WIFD f\/4.9 - Ganymedes<\/title>\n<meta name=\"description\" content=\"William Optics Cat 91 WIFD f\/4.9. 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