{"id":92575,"date":"2026-01-06T12:35:16","date_gmt":"2026-01-06T11:35:16","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=92575"},"modified":"2026-07-17T15:30:55","modified_gmt":"2026-07-17T13:30:55","slug":"omegon-pro-apo-ap-71-490-quadruplet-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-pro-apo-ap-71-490-quadruplet-ota\/","title":{"rendered":"Omegon Pro APO AP 71\/490 Quadruplet OTA - 71mm Refractor"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\">Omegon Pro APO AP 71\/490 Quadruplet OTA 71mm Refractor: vlak beeldveld en oculairs in een pakket<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Omegon Pro AP 71\/490<\/strong> is de meest complete compacte apochromaat van de Pro-lijn: een quadruplet met ED-glas en ge\u00efntegreerde field flattener, geleverd met amici-prisma en twee oculairs. Fotograferen met een vlak veld direct uit de doos, en tussendoor gewoon visueel kijken: deze buis doet beide zonder extra aankopen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An apochromat converges all colors to a focal point. Stars remain white and point-like, without the purple edges of simple lenses: precisely what a camera sensor would mercilessly reveal.<\/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\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-apochromatische-refractor-Pro-APO-AP-71-490-Quadruplet-OTA-5.jpg\" alt=\"Omegon Pro AP 71\/490 quadruplet refractor\" 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\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-apochromatische-refractor-Pro-APO-AP-71-490-Quadruplet-OTA-3.jpg\" alt=\"De 2,5 inch focuser met 1:10 reductie van de Omegon AP 71\/490\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h4 class=\"wp-block-heading\">Quadruplet met ingebouwde corrector<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">De ge\u00efntegreerde flattener maakt losse correctors en afstandsringen overbodig: sterren blijven puntvormig tot in de hoeken van de sensor. De 2,5 inch focuser met 1:10 reductie stelt fijngevoelig scherp, ook met een volle camera-trein.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Met de meegeleverde 20 mm en 8 mm oculairs kijk je op 25x en 61x: sterrenvelden, de Maan en heldere nevels, of overdag natuur via het amici-prisma met rechtopstaand beeld.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Included<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Quadruplet-objectief 71\/490 met ED-glas en ge\u00efntegreerde field flattener<\/li>\n\n\n<li>2,5 inch focuser met 1:10 reductie<\/li>\n\n\n<li>Amici-prisma 1,25 inch<\/li>\n\n\n<li>20 mm en 8 mm oculairs (1,25 inch)<\/li>\n\n\n<li>Ringklemmen met Vixen-stijl zwaluwstaart<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Featured accessories<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">De Omegon Powerbank 10k 12V (39,90 euro) voedt montering en camera onderweg. Het Omegon Pro UHC 2 inch filter (89 euro) haalt emissienevels naar voren en een Omegon Premium maanfilter (19,90 euro) dempt de felle Maan bij visueel gebruik.<\/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\">Wel: wie een apochromaat zoekt die fotografie en visueel waarnemen allebei compleet meelevert. Niet: wie puur fotografeert en elke gram telt; de AP 40\/180 of de 61\/360 met reducer is dan lichter en voordeliger. Twijfel je tussen de modellen? De <a href=\"\/en\/telescope-selection-aid\/\">Choice assistant<\/a> helpt. More Omegon is on the <a href=\"\/en\/brands\/omegon\/\">merk page<\/a>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Specifications<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td>Opening<\/td><td>71 mm<\/td><\/tr><tr><td>Focal length<\/td><td>490 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/6,9<\/td><\/tr><tr><td>Optical design<\/td><td>Quadruplet met ED-glas en ge\u00efntegreerde flattener<\/td><\/tr><tr><td>Focuser<\/td><td>2,5 inch met 1:10 reductie<\/td><\/tr><tr><td>Magnification included<\/td><td>25x en 61x<\/td><\/tr><tr><td>Execution<\/td><td>OTA (loose tube)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>De Omegon Pro AP 71\/490 wordt geleverd met ge\u00efntegreerde field flattener, 2,5 inch focuser met 1:10 reductie, ringklemmen, Vixen-zwaluwstaart, amici-prisma en 8 mm en 20 mm oculairen: fotografie en visueel in een pakket.<\/p>","protected":false},"featured_media":98930,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[51,428,3175,567],"product_tag":[],"class_list":["post-92575","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-refractor-ota","product_cat-refractor-telescopen","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":[93445,25035,24780],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":92586,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-apo-doubleed-ap-40-180-sixtuplet-ota\/","url_meta":{"origin":92575,"position":0},"title":"Omegon Pro APO DoubleED AP 40\/180 Sixtuplet OTA - 40mm Refractor","author":"Info telescoop","date":"06-01-2026","format":false,"excerpt":"The Omegon Pro AP 40\/180 comes with an integrated corrector, quadruplet ED optics, helical focuser, M48 connection, rotation mechanism, dew shield, Vixen dovetail, and tube rings: the ultra-compact travel astrograph.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-apochromatische-refractor-Pro-APO-DoubleED-AP-40-180-Quadruplet-OTA-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":91966,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-72-432-apo-refractor-photography-scope-ota\/","url_meta":{"origin":92575,"position":1},"title":"Omegon Pro 72\/432 APO Refractor Photography Scope OTA","author":"","date":"02-01-2026","format":false,"excerpt":"De Omegon Pro APO AP 72\/432 wordt geleverd met dubbele ED-lens, focuser met fijninstelling, 2 inch aansluiting, SC-schroefdraad en transportkoffer: telescoop, spotting scope en telelens in een.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-Photography-Scope-72-432-ED-OTA-11.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":33699,"url":"https:\/\/www.telescoop.nl\/en\/william-optics-ap-71-350-71-apochromatische-refractor-redcat-wifd\/","url_meta":{"origin":92575,"position":2},"title":"William Optics AP 71\/350 71 Apochromatic Refractor RedCat WIFD OTA","author":"","date":"14-11-2025","format":false,"excerpt":"William Optics RedCat 71 WIFD: Petzval-apochromaat 71\/350 f\/4,9 met interne WIFD-focuser. 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Geleverd met Bahtinov-masker, Arca\/Vixen-zwaluwstaart 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-71-350-71-Apochromatische-refractor-RedCat-WIFD-9.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":16270,"url":"https:\/\/www.telescoop.nl\/en\/omegon-72mm-quintuplet-refractor-astrofotografie\/","url_meta":{"origin":92575,"position":3},"title":"Omegon 72 mm Quintuplet Refractor","author":"Info telescoop","date":"23-07-2025","format":false,"excerpt":"De Omegon 72 mm Quintuplet biedt vijf lenselementen met twee ED-glazen, een ingebouwde full-frame corrector en een 3 inch focuser: haarscherpe widefield-beelden tot in de hoeken van een volformaatsensor.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Apochromatisches Teleskop 72mm Quintuplet f\u00fcr Astrofotografie","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-Refractor-Pro-APO-AP-72-400-Vijfling-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":91980,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-104-650-apo-refractor-ota-field-flattener\/","url_meta":{"origin":92575,"position":4},"title":"Omegon Pro 104\/650 APO Refractor OTA + 2\" Field Flattener","author":"","date":"02-01-2026","format":false,"excerpt":"The Omegon Pro APO AP 104\/650 comes with an FPL-53\/FPL-51 triplet objective, 2.9-inch dual-speed focuser, field flattener, 1.25\/2-inch adapter, and aluminum carrying case: the fully corrected flagship.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-16.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92032,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-96-575-apochromatische-refractor-triplet-ed-fcd-100\/","url_meta":{"origin":92575,"position":5},"title":"Omegon Pro 96\/575 Apochromatic Refractor Triplet ED FCD-100","author":"","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro APO AP 96\/575 wordt geleverd met FCD-100 triplet-ED lens, CNC-ringklemmen, Vixen-zwaluwstaartrail, 2\/1,25 inch adapter, zoekerschoen en uitschuifbare dauwkap: de instap in de grote triplets.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-96-575-Triplet-ED-FCD-100-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/92575","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=92575"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98930"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=92575"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=92575"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=92575"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=92575"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}