{"id":107317,"date":"2026-04-21T12:01:12","date_gmt":"2026-04-21T10:01:12","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=107317"},"modified":"2026-07-20T12:27:21","modified_gmt":"2026-07-20T10:27:21","slug":"televue-delos-17-3mm-72-degree-wide-angle-eyepiece","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-delos-173mm-72-groothoek-oculair\/","title":{"rendered":"TeleVue Delos 17.3mm - 72\u00b0 Wide-Angle Eyepiece"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>TeleVue Delos 17,3mm : 72\u00b0 Groothoek Oculair: Delos-oculair met 72 graden beeldveld<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De Delos 17,3 mm was tot de komst van de 24 mm de langste brandpuntsafstand van de serie. Met een veldstop van 21,7 mm zit hij dicht tegen de mechanische grens van een 1,25 inch steek aan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Voor een enkel allround oculair in een 1,25 inch focuser is dit vaak de beste keuze uit de serie: het grootste beeldveld dat nog binnen de steek past, met de volle 20 mm oogafstand.<\/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-Delos-oculair-17-3mm-1-25-.jpg\" alt=\"TeleVue Delos 17,3mm : 72\u00b0 Groothoek Oculair\" title=\"\"><\/figure><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">72 degrees with a long eye relief<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The Delos series is designed as a narrower Ethos field of view with more space behind the eyepiece. By keeping the field of view at 72 degrees, TeleVue was able to bring the eye relief to 20mm without the eyepiece becoming unmanageably large.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For eyeglass wearers, that's the difference between seeing the full field of vision and missing a part of it. Even without glasses, you're looking more relaxed because your eye doesn't have to push against the lens.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">De grens van 1,25 inch<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Een 1,25 inch steek laat een veldstop van maximaal ongeveer 27 mm toe. Met 21,7 mm benut dit oculair daar een flink deel van, zonder de vignettering die bij het uiterste optreedt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wil je verder, dan is een 2 inch oculair nodig. Binnen de serie is dat de 24 mm Delos.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Interpupillary distance and adjustable eyecup<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The eyecup is steplessly adjustable in height and lockable in any position, with index markings so you can find a previously found position. This ensures your eye's pupil is always in the same position relative to the telescope's exit pupil.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That's more than comfort. A misplaced eye causes edge discoloration and shadows in the image. With a fixed, repeatable eye position, that problem is gone, even during long sessions.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">In your telescope<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">In een telescoop met 1200 mm brandpuntsafstand levert dit oculair ongeveer 69x met een waar beeldveld van circa 1,04 graden. Voor je eigen telescoop reken je dat uit met de veldstop: waar beeldveld = 57,3 x veldstop gedeeld door de brandpuntsafstand van de telescoop.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De effectieve veldstop van dit model is 21,7 mm. Dat getal bepaalt hoeveel hemel je werkelijk ziet, niet de brandpuntsafstand alleen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Included<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Height-adjustable, lockable eyepiece<\/li><li>Dust caps for objective and eyepiece lenses<\/li><li>Filter thread abandoned<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This series accepts TeleVue Dioptrx, which allows you to correct your own astigmatism without glasses. For higher magnifications without sacrificing eye relief, use a Powermate. With a fast parabolic Newtonian, the Paracorr corrects for mirror coma, something no eyepiece alone can solve.<\/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 Allround gebruik in een 1,25 inch focuser<\/li><li>\u2713 Grote nevels en open sterrenhopen<\/li><li>\u2713 Brildragers die een laag vergrotingsbereik zoeken<\/li><li>\u2717 Wie een nog groter beeldveld wil, daarvoor is 2 inch nodig<\/li><li>\u2717 Hoge planeetvergrotingen<\/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>17,3 mm<\/td><\/tr><tr><td><strong>Apparent field of view<\/strong><\/td><td>72 degrees<\/td><\/tr><tr><td><strong>Effective field stop<\/strong><\/td><td>21,7 mm<\/td><\/tr><tr><td><strong>Eye distance<\/strong><\/td><td>20 mm<\/td><\/tr><tr><td><strong>Stitch gauge<\/strong><\/td><td>1.25 inches<\/td><\/tr><tr><td><strong>Filter thread<\/strong><\/td><td>Yes<\/td><\/tr><tr><td><strong>Dioptrx-compatible<\/strong><\/td><td>Yes<\/td><\/tr><tr><td><strong>Eyecup<\/strong><\/td><td>Height adjustable and lockable<\/td><\/tr><tr><td><strong>Coating<\/strong><\/td><td>Fully multi-coated, blackened lens edges<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">All wide-angle eyepieces are on the <a href=\"\/en\/telescope-accessories\/eyepieces-and-barlows\/wide-angle-eyepieces-wide-field\/\">page featuring wide-field eyepieces<\/a>. You can find the complete selection of this merk on the <a href=\"\/en\/brands\/televue\/\">TeleVue merk Page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Delos-oculair van 17,3 mm met 72 graden beeldveld, de langste 1,25 inch brandpuntsafstand van de serie.<\/p>","protected":false},"featured_media":107318,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[3129,56,3131],"product_tag":[],"class_list":["post-107317","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-oculairs-en-barlows","product_cat-telescoop-accessoires","product_cat-groothoek-oculairen-wide-field","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":[107464],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":107315,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-14mm-72-groothoek-oculair\/","url_meta":{"origin":107317,"position":0},"title":"TeleVue Delos 14mm - 72\u00b0 Wide-Angle Eyepiece","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"Delos-oculair van 14 mm met 72 graden beeldveld, geschikt om mee te zoeken en waar te nemen.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Delos 14mm 1,25\" productfoto van het 1,25 inch Delos 14 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-14mm-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-14mm-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-14mm-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-14mm-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107330,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-24mm-72-groothoek-oculair\/","url_meta":{"origin":107317,"position":1},"title":"TeleVue Delos 24mm \u2013 72\u00b0 Wide-Angle Eyepiece","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"Delos-oculair van 24 mm met 2 inch steek en 22 mm oogafstand, het langste model uit de serie.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Delos 24 mm 72\u00b0 2\" productfoto van het 2 inch Delos 24 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-24-mm-72d-2-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-24-mm-72d-2-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-24-mm-72d-2-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-24-mm-72d-2-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107313,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-12mm-72-groothoek-oculair-125\/","url_meta":{"origin":107317,"position":2},"title":"TeleVue Delos 12mm - 72\u00b0 Wide Angle Eyepiece 1.25\"","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"Delos-oculair van 12 mm met 72 graden beeldveld voor sterrenstelsels en bolhopen.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Delos 12mm 1,25\" productfoto van het 1,25 inch Delos 12 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-12mm-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-12mm-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-12mm-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-12mm-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107319,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-35mm-72-groothoek-oculair\/","url_meta":{"origin":107317,"position":3},"title":"TeleVue Delos 3.5mm - 72\u00b0 Wide-Angle Eyepiece","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"3.5mm eyepiece with 72-degree field of view and 20mm eye relief for high magnifications.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Delos 3,5mm 1,25\" productfoto van het 1,25 inch Delos 3,5 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-3-5mm-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-3-5mm-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-3-5mm-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-3-5mm-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107326,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-6mm-72-groothoek-oculair\/","url_meta":{"origin":107317,"position":4},"title":"TeleVue Delos 6mm \u2013 72\u00b0 Wide-Angle Eyepiece","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"Delos-oculair van 6 mm met 72 graden beeldveld en 20 mm oogafstand voor planeetwaarneming.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Delos-oculair, 6mm, 1,25\" productfoto van het 1,25 inch Delos 6 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Delos-oculair-6mm-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Delos-oculair-6mm-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Delos-oculair-6mm-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Delos-oculair-6mm-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107322,"url":"https:\/\/www.telescoop.nl\/en\/televue-delos-45mm-72-groothoek-oculair\/","url_meta":{"origin":107317,"position":5},"title":"TeleVue Delos 4.5mm \u2013 72\u00b0 Wide-Angle Eyepiece\u00a0","author":"Abdullah Ibrar","date":"21-04-2026","format":false,"excerpt":"4.5mm Delos eyepiece with a 72-degree field of view and 20mm eye relief for planetary detail.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Delos 4,5mm 1,25\" productfoto van het 1,25 inch Delos 4,5 mm oculair met geribbelde grip en groene Delos-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-4-5mm-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-4-5mm-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-4-5mm-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Delos-4-5mm-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/107317","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=107317"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/107318"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=107317"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=107317"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=107317"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=107317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}