{"id":31859,"date":"2025-10-30T16:55:09","date_gmt":"2025-10-30T15:55:09","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=31859"},"modified":"2026-06-03T10:23:09","modified_gmt":"2026-06-03T08:23:09","slug":"bresser-messier-90-500-refractor-eq-3","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-500-refractor-eq-3\/","title":{"rendered":"Bresser Messier 90\/500 Refractor EQ-3"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Bresser AC 90\/500 - Compact power with large field of view<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Bresser AC 90\/500<\/strong> is an ideal telescope for anyone who wants to enjoy wide and clear views of the night sky. With its large aperture of 90 mm, it captures a surprising amount of light, allowing star clusters and nebulae to be clearly visible. The short focal length of 500 mm provides a wide field of view - perfect for exploring the Milky Way or open star clusters.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Bresser-AC-90-500-Telescoop-Messier-EQ-3-1.jpg\" alt=\"Bresser AC 90\/500 telescope mounted on EQ-3 with counterweight, side view of complete setup including viewfinder and zenith prism.\" class=\"wp-image-31876\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Light, portable and ready to use immediately<\/strong><br>The AC 90\/500 is compact and easy to carry. Within minutes, it is ready to use. Thanks to the included EQ-3 mount, you can smoothly track what you're viewing, keeping objects beautifully in focus. The slow-motion buttons give you control over every move, without vibration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>For beginners and curious explorers alike<\/strong><br>You don't need any experience to get started with this telescope. Everything you need is in the box: a 26 mm eyepiece, 6\u00d730 viewfinder and a 90\u00b0 zenith prism. Point it at the moon and you'll immediately see sharp craters and mountain ranges. Or move to an open cluster of stars and experience the depth of space with bright contrast.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/10\/Bresser-AC-90-500-Telescoop-Messier-EQ-3-2.jpg\" alt=\"Bresser AC 90\/500 telescope set up on aluminum tripod with accessory tray, ready for visual observation.\" class=\"wp-image-31877\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sturdy mount for stable images<\/strong><br>The robust EQ-3 mount provides stability while observing. Counterweights keep the telescope balanced, which is especially useful at higher magnifications. The aluminum tripod is height adjustable and sturdy enough for hours of observation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What to expect<\/strong><br>\u2713 Moon: detailed craters, shadows and edges.<br>\u2713 Planets: bright discs and clear contrasts.<br>\u2713 Deep-sky: open star clusters and bright nebulae visible in dark skies.<br>\u2713 Ease of use: lightweight, portable and ready to use within minutes.<br>\u2717 Sun: safe to use only with a special sunscreen.<br>\u2717 Astrophotography: limited, mainly focused on visual observation.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Optics<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Design<\/td><td>Achromat (refractor)<\/td><\/tr><tr><td>Type<\/td><td>Refractor<\/td><\/tr><tr><td>Aperture (mm)<\/td><td>90<\/td><\/tr><tr><td>Focal length (mm)<\/td><td>500<\/td><\/tr><tr><td>Focal Ratio (f\/)<\/td><td>5,5<\/td><\/tr><tr><td>Resolution (theoretical)<\/td><td>1,28\u2033<\/td><\/tr><tr><td>Limit value (mag)<\/td><td>11,6<\/td><\/tr><tr><td>Light output relative to eye<\/td><td>170\u00d7<\/td><\/tr><tr><td>Max. useful magnification<\/td><td>180\u00d7<\/td><\/tr><tr><td>Tube material<\/td><td>Aluminum<\/td><\/tr><tr><td>Tube construction<\/td><td>Full tube<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Focuser<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Design<\/td><td>Rack Focuser<\/td><\/tr><tr><td>Ocular connection<\/td><td>1,25\u2033<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Mount<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Design<\/td><td>EQ-3<\/td><\/tr><tr><td>Type of mount<\/td><td>Equatorial<\/td><\/tr><tr><td>GoTo steering<\/td><td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tripod<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Tripod type<\/td><td>Aluminum tripod<\/td><\/tr><tr><td>Accessory holder<\/td><td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Included accessories<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Section<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Ocular<\/td><td>26 mm (1.25\u2033)<\/td><\/tr><tr><td>Seeker<\/td><td>6\u00d730<\/td><\/tr><tr><td>Zenith mirror<\/td><td>1.25\u2033, 90\u00b0 star diagonal<\/td><\/tr><tr><td>Dew cap<\/td><td>Yes<\/td><\/tr><tr><td>Slow motion cable<\/td><td>Yes<\/td><\/tr><tr><td>Dovetail<\/td><td>Vixen-Style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>General<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td>Series<\/td><td>Messier<\/td><\/tr><tr><td>Total weight (kg)<\/td><td>6,9<\/td><\/tr><tr><td>Observation goals<\/td><td>Moon &amp; Planets, Nebulae &amp; Galaxies<\/td><\/tr><tr><td>Astrophotography<\/td><td>No<\/td><\/tr><tr><td>Recommended for<\/td><td>Beginners<\/td><\/tr><tr><td>Sun<\/td><td>Only with suitable sunscreen<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>Bresser AC 90\/500 comes with EQ-3 mount, 26mm eyepiece, 6\u00d730 viewfinder, 90\u00b0 zenith prism, aluminum tripod and slow-motion cables - ideal for beginners who want to explore the Milky Way, open star clusters and the moon with a wide field of view.<\/p>","protected":false},"featured_media":104450,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[128],"product_cat":[51,567],"product_tag":[],"class_list":["post-31859","product","type-product","status-publish","has-post-thumbnail","product_brand-bresser","product_cat-telescopen","product_cat-refractor-telescopen","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":31903,"url":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-500-refractor-exos-2\/","url_meta":{"origin":31859,"position":0},"title":"Bresser Messier 90\/500 Refractor EXOS-2","author":"","date":"01-11-2025","format":false,"excerpt":"Bresser AC 90\/500 comes with EXOS-2 mount, 26mm eyepiece, 6x30 viewfinder, 90\u00b0 zenith prism, slow-motion cables, polar finder, Vixen-style dovetail and stable steel tripod - 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ideal for wide sky observations of nebulae, star clusters and planets.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":31934,"url":"https:\/\/www.telescoop.nl\/en\/bresser-messier-102s-600-refractor-hexafoc-exos-1\/","url_meta":{"origin":31859,"position":5},"title":"Bresser Messier 102S\/600 Refractor Hexafoc EXOS-1","author":"","date":"01-11-2025","format":false,"excerpt":"Bresser AC 102S\/600 comes with EXOS-1 mount, Hexafoc focuser, 26mm eyepiece, 6x30 viewfinder, 90\u00b0 zenith prism, eyepiece adapter 2\"\/1.25\", Vixen swallowtail, slow-motion cables, solar filter and steel tripod - ideal for wide-field observations of nebulae, star clusters, moon and planets.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Bresser AC 102S\/600 telescoop gemonteerd op EXOS-1 met contragewicht en buis in diagonale positie op statief","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-102S-600-Telescoop-Messier-Hexafoc-EXOS-1-1-1024x1024.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-102S-600-Telescoop-Messier-Hexafoc-EXOS-1-1-1024x1024.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-102S-600-Telescoop-Messier-Hexafoc-EXOS-1-1-1024x1024.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-102S-600-Telescoop-Messier-Hexafoc-EXOS-1-1-1024x1024.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/31859","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=31859"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/104450"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=31859"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=31859"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=31859"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=31859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}