{"id":90896,"date":"2025-12-03T11:17:16","date_gmt":"2025-12-03T10:17:16","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=90896"},"modified":"2026-09-10T14:45:39","modified_gmt":"2026-09-10T12:45:39","slug":"skywatcher-ap-100-550-esprit-100ed-apochromatic-refractor-professional-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/skywatcher-ap-100-550-esprit-100ed-apochromatische-refractor-professional-ota\/","title":{"rendered":"Skywatcher AP 100\/550 ESPRIT-100ED Apochromatic Refractor Professional OTA"},"content":{"rendered":"<h2>Sky-Watcher Esprit-100ED: the favorite of demanding photographers<\/h2>\n<p>The Sky-Watcher Esprit-100ED is a 100\/550mm (f\/5.5) apochromatic triplet with FPL-53 glass. Worldwide, it's one of the most acclaimed astrographs in its class: enough aperture for detail, short enough for wide fields, and with color correction that keeps bright stars clean down to the pixel level.<\/p>\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-2.jpg\" alt=\"Sky-Watcher Esprit-100ED apochromatic triplet refractor\" class=\"wp-image-90897\" title=\"\"><\/figure>\n<h2>Why an Esprit?<\/h2>\n<p>The Esprit line is Sky-Watcher's professional astrophotography series: air-spaced triplets with premium glass, built to place flat, color-pure star fields onto a camera sensor. Stars remain points even in the corners, even with large sensors, and bright stars do not develop a purple halo. This is the class where optics make the difference between a nice and a publishable photo.<\/p>\n<h2>The golden mean of the Esprit line<\/h2>\n<p>A hundred-millimeter triplet at f\/5.5 is the final destination for many photographers: virtually every deep-sky target is achievable, from sprawling nebulae to more compact galaxies. The included 9x50 right-angle finder and 2-inch star diagonal also make the optical tube visually complete.<\/p>\n<h2>This is how to get the most out of this telescope<\/h2>\n<ul>\n<li><strong>Virtually no cooling time and no collimation:<\/strong> A refractor is ready within fifteen minutes, and the optics stay aligned. More time for photons.<\/li>\n<li><strong>The setup determines your photo result:<\/strong> Count on HEQ5-class or heavier for full photographic potential.<\/li>\n<li><strong>Plan to flatten me:<\/strong> For sharp stars all the way to the corners of your sensor, a field flattener is essential for a photographic refractor. Order it along with your initial purchase to avoid a second waiting period.<\/li>\n<li><strong>Dew control is essential with lenses:<\/strong> A dew cap or dew heater prevents the front lens from fogging up in the middle of a session.<\/li>\n<li><strong>Never look directly at the sun without protection.,<\/strong> not even for one photo: only with a certified solar filter in front.<\/li>\n<\/ul>\n<h2>For whom yes and for whom no<\/h2>\n<p><strong>Hello<\/strong> The advanced photographer looking for an astrograph to last for years.<\/p>\n<p><strong>Not<\/strong> As a first introduction to astrophotography, this is a lot of budget for the learning curve; If you want astrophotography without the mount learning curve and post-processing, then the <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/smart-telescopes\/\">smart telescopes<\/a> the shorter route; ours <a href=\"https:\/\/www.telescoop.nl\/en\/the-best-telescope-for-beginners\/\">Telescope Buying Guide for Beginners<\/a> explain the difference.<\/p>\n<h2>Featured accessories<\/h2>\n<p>These accessories add the most after purchase:<\/p>\n<ul>\n<li><strong>Camera adapter:<\/strong> The Sky-Watcher M48 adapters connect your Canon EOS or Nikon directly to the flattener or focuser.<\/li>\n<li><strong>Light Pollution Filter (2 inch)<\/strong> Under the Dutch or Belgian sky, a light pollution filter can significantly enhance the contrast in your photos.<\/li>\n<\/ul>\n<h2>Technical specifications<\/h2>\n<table class=\"has-fixed-layout\">\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Type<\/td>\n<td>Refractor<\/td>\n<\/tr>\n<tr>\n<td>Design<\/td>\n<td>Apochromat<\/td>\n<\/tr>\n<tr>\n<td>Lens Design<\/td>\n<td>Triplet<\/td>\n<\/tr>\n<tr>\n<td>Aperture (mm)<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>Focal length (mm)<\/td>\n<td>550<\/td>\n<\/tr>\n<tr>\n<td>Focal Ratio (f\/)<\/td>\n<td>5,5<\/td>\n<\/tr>\n<tr>\n<td>Resolution<\/td>\n<td>1,15<\/td>\n<\/tr>\n<tr>\n<td>Limit value (mag)<\/td>\n<td>11,8<\/td>\n<\/tr>\n<tr>\n<td>Light output<\/td>\n<td>200<\/td>\n<\/tr>\n<tr>\n<td>Max. useful magnification<\/td>\n<td>200<\/td>\n<\/tr>\n<tr>\n<td>Tube material<\/td>\n<td>Aluminum<\/td>\n<\/tr>\n<tr>\n<td>Tube construction<\/td>\n<td>Full tube<\/td>\n<\/tr>\n<tr>\n<td>Tube weight (kg)<\/td>\n<td>6,3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"wp-block-columns is-layout-flex\">\n<div class=\"wp-block-column\" style=\"flex-basis:38%\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-100-550-ESPRIT-100ED-Apochromatische-Refractor-Professional-OTA-4.jpg\" alt=\"Sky-Watcher Esprit-100ED Apochromatic Triplet Refractor, Product Photo 2\" class=\"wp-image-90899\" title=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-column\" style=\"flex-basis:62%\">\n<h2>Included in the box<\/h2>\n<ul>\n<li>Sky-Watcher Esprit-100ED Optical Tube<\/li>\n<li>Finderscope: 9x50 right-angle<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<h2>Honest advice from observers<\/h2>\n<p>We sell and use the Sky-Watcher line ourselves. In our <a href=\"https:\/\/www.telescoop.nl\/en\/skywatcher-telescopes\/\">Sky-Watcher merk Guide<\/a> We'll explain which series are strong and which you'd rather skip. View the full range on our <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/sky-watcher\/\">Sky-Watcher merk Page<\/a>. Ordered before 11:59 PM gets it fast, in the Netherlands and Belgium. Unsure about mounting, flattener, or camera connection? Call or email us: we're happy to help with astrophotography setups.<\/p>","protected":false},"excerpt":{"rendered":"<p>The <strong>Sky-Watcher Esprit-100ED<\/strong> is globally one of the most acclaimed astrographs in its class: 100\/550mm FPL-53 triplet with color correction that keeps bright stars clean down to the pixel level.<\/p>","protected":false},"featured_media":98177,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[51,3175,567],"product_tag":[],"class_list":["post-90896","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-telescopen","product_cat-refractor-ota","product_cat-refractor-telescopen","product_shipping_class-licht","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"outofstock","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":[90722,90724,90682],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":90891,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-ap-80-400-esprit-80ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90896,"position":0},"title":"Skywatcher AP 80\/400 ESPRIT-80ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"De Sky-Watcher Esprit-80ED is een compact professioneel triplet: 80\/400 mm FPL-53 op f\/5, dus maximaal signaal per belichtingsminuut met sterren die tot in de hoeken punten blijven. Inclusief 9x50 hoekzoeker en 2 inch diagonal.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-80-400-ESPRIT-80ED-Apochromatische-Refractor-Professional-OTA-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":90879,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-ap-120-840-esprit-120ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90896,"position":1},"title":"Skywatcher AP 120\/840 ESPRIT-120ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"De Sky-Watcher Esprit-120ED combineert opening en precisie: 120\/840 mm FPL-53 triplet voor de fijnere deep-sky doelen, met visueel planeetwerk als volwaardige tweede rol.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-120-840-ESPRIT-120ED-Apochromatische-Refractor-Professional-OTA-3.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":90885,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-ap-150-1050-esprit-150ed-apochromatische-refractor-professional-ota\/","url_meta":{"origin":90896,"position":2},"title":"Skywatcher AP 150\/1050 ESPRIT-150ED Apochromatic Refractor Professional OTA","author":"","date":"03-12-2025","format":false,"excerpt":"De Sky-Watcher Esprit-150ED is het vlaggenschip: 150\/1050 mm FPL-53 triplet van observatoriumklasse, voor publiceerbare deep-sky-opnames en visueel planeetwerk van het hoogste niveau.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-AP-150-1050-ESPRIT-150ED-Apochromatische-Refractor-Professional-OTA-3.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":91125,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-m48-field-flattener-esprit-80ed\/","url_meta":{"origin":90896,"position":3},"title":"Sky-Watcher M48 Field Flattener for Esprit-80ED Triplet Super APO","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's M48 Esprit-80ED comes with M48 camera adapter, special-fit Skywatcher ESPRIT 80 telescope mount and high-quality flattener optics for perfectly flat astrophotos all the way to the image edge. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-M48-Esprit-80ED-Flattener-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":91128,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-m48-field-flattener-esprit-100ed\/","url_meta":{"origin":90896,"position":4},"title":"Sky-Watcher M48 Field Flattener for Esprit-100ED Triplet","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's 100 Flattener comes with M65 telescope mount, M48 camera adapter, M74 adapter ring and 55 mm backfocus - ideal for taking flat astrophotos to the image edge with the Skywatcher ESPRIT 100. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatchers-100-Flattener-Esprit-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":91131,"url":"https:\/\/www.telescoop.nl\/en\/skywatcher-m48-field-flattener-esprit-120ed\/","url_meta":{"origin":90896,"position":5},"title":"Sky-Watcher M48 Field Flattener for Esprit-120ED Triplet","author":"","date":"04-12-2025","format":false,"excerpt":"Skywatcher's 120 Flattener comes with integrated M48 camera connector and specially designed flattener optics for the Skywatcher Esprit 120, ensuring that stars are captured razor sharp right to the edge of the field of view. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/90896","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=90896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98177"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=90896"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=90896"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=90896"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=90896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}