{"id":30726,"date":"2025-10-11T13:17:13","date_gmt":"2025-10-11T11:17:13","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=30726"},"modified":"2026-07-18T13:50:34","modified_gmt":"2026-07-18T11:50:34","slug":"explore-scientific-127-952-ed-triplet-alu-essential-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/explore-scientific-127-952-ed-triplet-alu-essential-ota\/","title":{"rendered":"Explore Scientific 127\/952 Refractor ED Triplet Alu Essential OTA"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>127 mm FCD-1 triplet: contrast above the doublet class<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Explore Scientific 127\/952 ED Essential<\/strong> is a powerful 127 mm triplet refractor with exceptional contrast and color correction, for advanced observers and astrophotographers. Three lenses with Hoya's FCD-1 ED glass and two air gaps deliver a calculated Strehl ratio above 0.9: razor-sharp, color-neutral images, even at high magnification.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Built for visual and photographic work<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The solid aluminum tube and the Crayford focuser with 1:10 fine adjustment also stably support heavier cameras. With a 952mm focal length (f\/7.5), this model combines brightness and resolution: planets and double stars at a high visual level, and with the separately available field flattener, a flat field of view all the way to the sensor edges. Tube rings, a dew shield, and an accessory shoe for a finder or guidescope are included in the box. Magnifications up to around 250x are practically meaningful.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>In the box<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Optical tube 127\/952 FCD-1 ED-triplet<\/li>\n\n\n\n<li>Crayford focuser with 1:10 fine adjustment<\/li>\n\n\n\n<li>Tube Rings<\/li>\n\n\n\n<li>Dew cap<\/li>\n\n\n\n<li>Accessory shoe (T-profile)<\/li>\n<\/ul>\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\">For: advanced observers and photographers seeking triplet contrast in the 127mm class at a fair price. Not for: those who want a complete GoTo set; look instead to the 102 FCD-100 on the iEXOS-100 mount.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Specifications<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Optical design<\/td><td>Apochromat, FCD-1 ED triplet with two air gaps<\/td><\/tr><tr><td>Opening<\/td><td>127 mm<\/td><\/tr><tr><td>Focal length<\/td><td>952 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/7.5<\/td><\/tr><tr><td>Polystrehl<\/td><td>Calculated above 0.9<\/td><\/tr><tr><td>Focuser<\/td><td>Crayford 1:10 fine adjustment<\/td><\/tr><tr><td>Attachment<\/td><td>Mounting rings with accessory shoe<\/td><\/tr><tr><td>Execution<\/td><td>OTA (loose tube)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Are you in doubt about the right choice? The <a href=\"https:\/\/www.telescoop.nl\/en\/telescope-selection-aid\/\">telescope selection aid<\/a> helps you further. Also check out all the <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/refracting-telescopes\/\">Refracting telescopes<\/a> and the full range of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/explore-scientific\/\">Explore Scientific<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Explore Scientific 127\/952 ED Essential OTA: FCD-1 triplet apochromat f\/7.5 with Crayford focuser (1:10), tube rings, and dew shield. Contrast and color correction superior to doublet class.<\/p>","protected":false},"featured_media":30728,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[498],"product_cat":[51,428,531,3175,567],"product_tag":[],"class_list":["post-30726","product","type-product","status-publish","has-post-thumbnail","product_brand-explore-scientific","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-gevorderd","product_cat-refractor-ota","product_cat-refractor-telescopen","product_shipping_class-telescoop","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":30737,"url":"https:\/\/www.telescoop.nl\/en\/explore-scientific-102-714-ed-fcd100-carbon-iexos100-goto\/","url_meta":{"origin":30726,"position":0},"title":"Explore Scientific 102\/714 Refractor ED FCD-100 Carbon iEXOS-100 GoTo","author":"Info telescoop","date":"11-10-2025","format":false,"excerpt":"Explore Scientific 102\/714 FCD-100 Carbon op iEXOS-100 PMC-8 Wi-Fi GoTo: complete triplet-fotoset met polystrehl 0,97, Hexafoc 2,5 inch focuser en volautomatische GoTo-besturing via de app.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Explore Scientific Apochromatische refractor AP 102\/714 ED FCD-100 CF Hexafoc iEXOS-100 PMC-8 Wi-Fi GoTo","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Explore-Scientific-Apochromatische-refractor-AP-102-714-ED-FCD-100-CF-Hexafoc-iEXOS-100-PMC-8-Wi-Fi-GoTo.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Explore-Scientific-Apochromatische-refractor-AP-102-714-ED-FCD-100-CF-Hexafoc-iEXOS-100-PMC-8-Wi-Fi-GoTo.jpg?resize=350%2C200&ssl=1 1x, 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