{"id":107742,"date":"2026-04-29T13:41:01","date_gmt":"2026-04-29T11:41:01","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=107742"},"modified":"2026-08-23T15:09:07","modified_gmt":"2026-08-23T13:09:07","slug":"tele-vue-3x-125-barlow-lens","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/televue-3x-125-barlowlens\/","title":{"rendered":"TeleVue 3x 1.25\" Barlow Lens"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>TeleVue 3x 1,25&#8243; : barlowlens: barlowlens van TeleVue<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The TeleVue 3x Barlow triples the magnification, making it the shortest route to high planetary reach. A 15mm eyepiece becomes an effective 5mm, while maintaining the 15mm's generous eye relief.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It's precisely that combination that makes the 3x interesting: high magnification with the viewing comfort of a medium-length eyepiece.<\/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-Barlowlens-1-25-3x.jpg\" alt=\"TeleVue 3x 1.25&quot;\" : title=\"\"><\/figure><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">What a good Barlow does<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A Barlow lens extends the effective focal length of your telescope, thereby increasing the magnification of any eyepiece inserted into it. Two eyepieces plus a Barlow lens thus cover four magnifications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The quality of the glass determines whether you get it for free or pay for it with contrast. TeleVue uses high-refraction glass with multiple coatings; the difference with the eyepiece alone is not visible in practice.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Effect on eye distance<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">A classic Barlow lens slightly increases the eye relief of short eyepieces. This is welcome with a Pl\u00f6ssl: a 15mm with a Barlow has more comfortable eye relief than a standalone 7.5mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you want a magnification factor that has no effect on the eye relief or exit pupil, the telecentric Powermate is the alternative within the merk series.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Combine the Barlow with the TeleVue Ploessls for a compact set that covers four magnifications. The eyepieces are parfocal, so switching requires minimal refocusing.<\/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 Planet detail with comfortable eyepieces<\/li><li>\u2713 Those who want high magnifications without short eyepieces<\/li><li>\u2713 Telescopes with a long f-ratio are rarely discussed: short tubes actually benefit<\/li><li>Who already has a 5 mm eyepiece<\/li><li>\u2717 Deep-sky survey<\/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>Magnification factor<\/strong><\/td><td>3x<\/td><\/tr><tr><td><strong>Stitch gauge<\/strong><\/td><td>1.25 inches<\/td><\/tr><tr><td><strong>Coating<\/strong><\/td><td>Fully multi-coated<\/td><\/tr><tr><td><strong>Filter thread<\/strong><\/td><td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">More eyepieces and Barlows are on the <a href=\"\/en\/telescope-accessories\/eyepieces-and-barlows\/\">Accessory page for eyepieces and Barlows<\/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>TeleVue 3x 1.25 inch Barlow for high planetary magnifications with comfortable eyepieces.<\/p>","protected":false},"featured_media":107743,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[1551],"product_cat":[56,3134,3129],"product_tag":[],"class_list":["post-107742","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-telescoop-accessoires","product_cat-barlow-lenzen-en-focal-extenders","product_cat-oculairs-en-barlows","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":[107133],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":107740,"url":"https:\/\/www.telescoop.nl\/en\/televue-2x-125-barlowlens\/","url_meta":{"origin":107742,"position":0},"title":"TeleVue 2x 1.25\" Barlow Lens","author":"Abdullah Ibrar","date":"29-04-2026","format":false,"excerpt":"TeleVue 1.25 inch 2x Barlow lens that doubles magnification without quality loss.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Barlowlens 1,25\", 2x zwarte TeleVue 2x barlowlens met 1,25 inch aansluiting, klemring en groene TeleVue-opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Barlowlens-1-25-2x.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Barlowlens-1-25-2x.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Barlowlens-1-25-2x.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Barlowlens-1-25-2x.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107753,"url":"https:\/\/www.telescoop.nl\/en\/televue-big-barlow-2-2x-barlowlens\/","url_meta":{"origin":107742,"position":1},"title":"TeleVue Big Barlow 2\" 2x - Barlow Lens","author":"Abdullah Ibrar","date":"29-04-2026","format":false,"excerpt":"TeleVue Big Barlow 2x 2-inch for the large Naglers and Panoptics.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue BIG Barlowlens 2\", 2x zwarte 2-inch TeleVue Big Barlow 2x met stelschroef en groene \u201cBIG Barlow\u201d opdruk op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-BIG-Barlowlens-2-2x.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-BIG-Barlowlens-2-2x.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-BIG-Barlowlens-2-2x.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-BIG-Barlowlens-2-2x.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107127,"url":"https:\/\/www.telescoop.nl\/en\/televue-plossl-8mm-50-125-oculair\/","url_meta":{"origin":107742,"position":2},"title":"TeleVue Pl\u00f6ssl 8mm - 50\u00b0 1.25\" Eyepiece","author":"Abdullah Ibrar","date":"17-04-2026","format":false,"excerpt":"TeleVue Pl\u00f6ssl 8mm eyepiece for high-contrast moon and planet observation.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Pl\u00f6ssl 8mm \u2013 50\u00b0 1,25\" Oculair wordt geleverd met hoogwaardige multicoating, comfortabele oogschelp en filterdraad. Ideaal voor scherpe observaties van planeten, dubbelsterren en deep-skyobjecten.","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ploessl-8mm-1-25-1.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-Ploessl-8mm-1-25-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ploessl-8mm-1-25-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Oculair-Ploessl-8mm-1-25-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107133,"url":"https:\/\/www.telescoop.nl\/en\/televue-plossl-15mm-50-125-oculair\/","url_meta":{"origin":107742,"position":3},"title":"TeleVue Pl\u00f6ssl 15mm \u2013 50\u00b0 1.25\u2033 Eyepiece","author":"Abdullah Ibrar","date":"17-04-2026","format":false,"excerpt":"TeleVue Ploessl 15mm as a versatile medium magnification, also strong with a Barlow.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Pl\u00f6ssl-oculair, 15mm, 1,25\" close-up van het 1,25 inch Pl\u00f6ssl 15 mm oculair met groene Tele Vue opdruk op zwarte behuizing","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Ploessl-oculair-15mm-1-25-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Ploessl-oculair-15mm-1-25-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Ploessl-oculair-15mm-1-25-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Ploessl-oculair-15mm-1-25-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107749,"url":"https:\/\/www.telescoop.nl\/en\/televue-powermate-25x-125-barlowlens\/","url_meta":{"origin":107742,"position":4},"title":"TeleVue Powermate 2.5x 1.25\u2033 - 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