{"id":107527,"date":"2026-04-28T11:46:21","date_gmt":"2026-04-28T09:46:21","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=107527"},"modified":"2026-07-20T12:26:19","modified_gmt":"2026-07-20T10:26:19","slug":"televue-ethos-8mm-eyepiece","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-ethos-8mm-oculair\/","title":{"rendered":"TeleVue Ethos 8mm \u2013 Eyepiece"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>TeleVue Ethos 8mm : Oculair: Ethos-oculair met 100 graden beeldveld<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">De Ethos 8 mm is het lichtste oculair van de serie en daarmee het meest geschikt voor gebruik in een binoviewer of op een montering die weinig gewicht verdraagt. De diameter blijft bescheiden, het beeldveld is met 100 graden onverminderd groot.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Deze brandpuntsafstand hoort bij de reeks 21 mm, 13 mm en 8 mm en levert op de meeste telescopen een hoge, nog comfortabele vergroting.<\/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-Oculair-Ethos-8mm-1-25-2-1.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" title=\"\"><\/figure><figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-8mm-1-25-2-.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" title=\"\"><\/figure><\/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:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-8mm-1-25-2-.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" 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:62%\">\n<h4 class=\"wp-block-heading\">What a 100-degree field of view does<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A classic Ploessl has 50 degrees, a Nagler has 82 degrees. At 100 degrees, your eye can no longer take in the field at once: you\u2019re looking around the image instead of *at* it. That\u2019s the effect the Ethos series is known for.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practically, this also means that objects remain in view for longer. On a manually tracked Dobson, this saves constant readjustment.<\/p>\n<\/div>\n<\/div>\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:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-8mm-1-25-2-.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" 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:62%\">\n<h4 class=\"wp-block-heading\">Licht genoeg voor elke opstelling<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Met ongeveer 430 gram is de 8 mm merkbaar lichter dan de langere modellen. Op een Dobson hoef je de balans nauwelijks bij te stellen bij het wisselen van oculair.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In 1,25 inch modus is het oculair parfocaal met de TeleVue Ploessls, DeLites, Nagler Type 6 en de 1,25 inch Panoptics. Met de HiHat-verloopadapter houd je die parfocaliteit ook aan in een 2 inch focuser.<\/p>\n<\/div>\n<\/div>\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:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-8mm-1-25-2-.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" 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:62%\">\n<h4 class=\"wp-block-heading\">Viewing Comfort and Dioptrx<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The eye relief is 15 mm at every focal length in the series. The height of the foldable eyecup is adjustable, so your eye is always in the same position.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you wear glasses due to astigmatism, you can replace them with Dioptrx on the eyepiece. This corrects your own cylindrical aberration without the eyeglass lenses costing contrast and eye distance.<\/p>\n<\/div>\n<\/div>\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:38%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-8mm-1-25-2-.jpg\" alt=\"TeleVue Ethos 8mm : Oculair\" 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:62%\">\n<h4 class=\"wp-block-heading\">In your telescope<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">In een telescoop met een brandpuntsafstand van 1200 mm levert dit oculair ongeveer 150x met een waar beeldveld van circa 0,66 graden. Je rekent dat voor je eigen telescoop 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 veldstop van dit model is 13,9 mm. Dat getal, en niet de brandpuntsafstand alleen, bepaalt hoeveel hemel je werkelijk ziet.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Included<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Foldable rubber eyecup<\/li><li>Eyecup protector<\/li><li>Dust cover for the stitch<\/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\">Every Ethos eyepiece is compatible with the TeleVue Dioptrx, a corrector for astigmatism that allows you to observe without glasses. If you\u2019re using a fast Newtonian, the Paracorr coma corrector will bring out that last bit of edge sharpness. For a 2-inch focuser, an Everbrite zenith mirror is the logical addition, and an eyepiece case protects your investment while on the go.<\/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 Waarnemers met een binoviewer<\/li><li>\u2713 Planeten en compacte deep-sky objecten<\/li><li>\u2713 Wie een lichte 100 graden oculair zoekt<\/li><li>\u2717 Overzichtsbeelden bij lage vergroting<\/li><li>\u2717 Wie de langere brandpuntsafstanden van de serie zoekt<\/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>8 mm<\/td><\/tr><tr><td><strong>Apparent field of view<\/strong><\/td><td>100 degrees<\/td><\/tr><tr><td><strong>Effective field stop<\/strong><\/td><td>13,9 mm<\/td><\/tr><tr><td><strong>Eye distance<\/strong><\/td><td>15 mm<\/td><\/tr><tr><td><strong>Stitch gauge<\/strong><\/td><td>1.25 inch and 2 inch<\/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>Coating<\/strong><\/td><td>Fully multi-coated, blackened lens edges<\/td><\/tr><tr><td><strong>Eyecup<\/strong><\/td><td>Foldable, with protective cap<\/td><\/tr><tr><td><strong>Weight<\/strong><\/td><td>circa 430 g<\/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>Ethos-oculair van 8 mm met 100 graden beeldveld, licht en geschikt voor binoviewers.<\/p>","protected":false},"featured_media":107531,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[3129,56,3131],"product_tag":[],"class_list":["post-107527","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":[107470],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":107545,"url":"https:\/\/www.telescoop.nl\/en\/televue-ethos-10mm-100-oculair\/","url_meta":{"origin":107527,"position":0},"title":"TeleVue Ethos 10mm 100\u00b0 \u2013 Eyepiece","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"Ethos-ocular 10mm with a 100-degree field of view and dual barrel sizes of 1.25 and 2 inches.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Ethos 10mm 1,25\"\/2\" productfoto van het Ethos 10 mm oculair met groene opschriftring, gekartelde grip en zilverkleurige 2 inch skirt op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-10mm-1-25-2-.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-Ethos-10mm-1-25-2-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-10mm-1-25-2-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-10mm-1-25-2-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107546,"url":"https:\/\/www.telescoop.nl\/en\/televue-ethos-13mm-100-oculair\/","url_meta":{"origin":107527,"position":1},"title":"TeleVue Ethos 13mm 100\u00b0 \u2013 Eyepiece","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"Ethos-oculair van 13 mm met 100 graden beeldveld, het meest veelzijdige model uit de serie.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Ethos 13mm 1,25\"\/2\" productfoto van het Ethos 13 mm oculair met groene opschriftring en zilverkleurige 2 inch skirt op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-13mm-1-25-2-3.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-Ethos-13mm-1-25-2-3.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-13mm-1-25-2-3.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-13mm-1-25-2-3.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107121,"url":"https:\/\/www.telescoop.nl\/en\/televue-ethos-17mm-100-2-oculair\/","url_meta":{"origin":107527,"position":2},"title":"TeleVue Ethos 17mm \u2013 100\u00b0 2\" Eyepiece","author":"Abdullah Ibrar","date":"17-04-2026","format":false,"excerpt":"Ethos-oculair van 17 mm met 100 graden beeldveld en 2 inch steek, voor overzicht met contrast.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Oculair Ethos 17mm 2\" close-up van het zwarte Ethos 17 mm oculair met groene 100\u00b0 opdruk en geribbelde gripring","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-17mm-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-Ethos-17mm-2-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-17mm-2-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ethos-17mm-2-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107124,"url":"https:\/\/www.telescoop.nl\/en\/televue-ethos-21mm-100-2-oculair\/","url_meta":{"origin":107527,"position":3},"title":"TeleVue Ethos 21mm - 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