{"id":107429,"date":"2026-04-27T13:38:53","date_gmt":"2026-04-27T11:38:53","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=107429"},"modified":"2026-07-20T12:33:08","modified_gmt":"2026-07-20T10:33:08","slug":"televue-paracorr-type-2","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-paracorr-type-2-big-3-coma-corrector\/","title":{"rendered":"TeleVue Paracorr Type 2 BIG 3\" - Coma corrector"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>TeleVue Paracorr Type 2 BIG 3\" : Coma corrector: comacorrector voor parabolische Newtons<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De Paracorr BIG is de 3 inch uitvoering van de Type 2, ontwikkeld voor grote Dobsons en astrografen met een 3 inch focuser. De grotere doorlaat voorkomt vignettering waar de 2 inch versie tegen zijn rand aanloopt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De correctie is dezelfde: parabolische spiegels tot f\/3, met een factor 1,15.<\/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\/2026\/04\/TeleVue-BIG-Paracorr-comacorrector-type-2-3-.jpg\" alt=\"TeleVue Paracorr Type 2 BIG 3\" : coma title=\"\"><\/figure><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Waarom een parabolische Newton coma heeft<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Een parabolische hoofdspiegel beeldt alleen het centrum perfect af. Naar de rand toe krijgen sterren een komeetvormig staartje: coma. Hoe sneller de spiegel, hoe kleiner het scherpe centrum; bij f\/4 is dat nog maar een paar millimeter.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Geen enkel oculair kan dat oplossen, want de fout ontstaat in de spiegel. Een corrector in het lichtpad wel. De Paracorr corrigeert de coma en laat de rest van het beeld ongemoeid.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Voor grote spiegels en grote sensoren<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Bij Dobsons vanaf ongeveer 500 mm opening wordt de volledig verlichte veldcirkel van een 2 inch corrector krap, zeker met oculairs als de 21 mm Ethos. De 3 inch doorlaat lost dat op.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Fotografisch bedient de BIG sensoren tot fullframe formaat, mits de focuser en de rest van de trein de 3 inch lijn doortrekken.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">De Paracorr is de vaste partner van de Ethos- en Nagler-oculairs op snelle Dobsons: juist bij 82 en 100 graden beeldveld zie je de rand, en dus de coma. Met de corrector zijn sterren tot in de hoek puntvormig.<\/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 Dobsons met een 3 inch focuser en grote opening<\/li><li>\u2713 Astrofotografie met grote sensoren op een snelle Newton<\/li><li>\u2713 Wie vignettering bij de 2 inch versie vaststelt<\/li><li>\u2717 Telescopen met een 2 inch focuser, daarvoor is de Type 2 er<\/li><li>\u2717 Niet-parabolische optiek<\/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>Comacorrector voor visueel en fotografie<\/td><\/tr><tr><td><strong>Magnification factor<\/strong><\/td><td>1,15x<\/td><\/tr><tr><td><strong>Suitable for<\/strong><\/td><td>Parabolische Newtons tot f\/3<\/td><\/tr><tr><td><strong>Connection<\/strong><\/td><td>3 inch<\/td><\/tr><tr><td><strong>Coating<\/strong><\/td><td>Fully multi-coated<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">You can find the complete product line for this merk at the <a href=\"\/en\/brands\/televue\/\">TeleVue merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Paracorr BIG 3 inch comacorrector voor grote Dobsons en astrografen tot f\/3.<\/p>","protected":false},"featured_media":107433,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[56,469,3108,3105,3104],"product_tag":[],"class_list":["post-107429","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-telescoop-accessoires","product_cat-astro-fotografie","product_cat-coma-correctors","product_cat-optische-accessoires","product_cat-overige-astrofotografie-accessoires","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":107602,"url":"https:\/\/www.telescoop.nl\/en\/televue-paracorr-comacorrector-type-2\/","url_meta":{"origin":107429,"position":0},"title":"TeleVue 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