{"id":31979,"date":"2025-11-01T12:43:56","date_gmt":"2025-11-01T11:43:56","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=31979"},"modified":"2026-10-13T11:06:33","modified_gmt":"2026-10-13T09:06:33","slug":"bresser-sirius-ac-70-900-az-1","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/bresser-sirius-ac-70-900-az-1\/","title":{"rendered":"Bresser Sirius AC 70\/900 AZ-1 Sirius"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Complete telescope set with solar filter: Moon, planets, and the sun!<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The Bresser Sirius 70\/900 AZ-1 is a complete starter set with a bonus: the included objective solar filter also allows for safe observation of the sun. The 70 mm lens captures 36 percent more light than a 60 mm model and displays the Moon, Saturn, and Jupiter with good contrast.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" data-id=\"32011\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-70-900-AZ-1-Telescoop-Sirius-2.jpg\" alt=\"Bresser Sirius AC 70\/900 AZ-1 Telescope, Fully Assembled\" class=\"wp-image-32011\" title=\"\"><\/figure>\n<\/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\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/11\/Bresser-AC-70-900-AZ-1-Telescoop-Sirius-1.jpg\" alt=\"Side view of the Bresser Sirius 70\/900 with solar filter\" class=\"wp-image-32010\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h4 class=\"wp-block-heading\">Long focal length for calm images<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">With a 900 mm focal length (f\/12.9), chromatic aberrations are limited, and the included eyepieces are already sharp. You can observe at 45x and 225x; consider approximately 140x as the practical maximum for this aperture. The smartphone adapter captures your observations.<\/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\">\n<li>70\/900 achromatic optics<\/li>\n\n\n\n<li>AZ-1 Mount with Aluminum Tripod<\/li>\n\n\n\n<li>20mm and 4mm eyepieces<\/li>\n\n\n\n<li>3x Barlow lens<\/li>\n\n\n\n<li>Red dot viewfinder<\/li>\n\n\n\n<li>90-degree equilateral prism<\/li>\n\n\n\n<li>Objective solar filter<\/li>\n\n\n\n<li>Smartphone adapter<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Featured accessories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.telescoop.nl\/en\/bresser-eyepiece-plossl-pl-10mm-125\/\">Bresser Pl\u00f6ssl 10 mm eyepiece<\/a> (90x, 29 euros) is the ideal medium magnification for planets. An Omegon Premium moon filter (19.90 euros) dims bright moonlight. Only use a solar filter if it is undamaged and never look at the sun without certified protection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">For whom yes, for whom no<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ideal for: beginners looking for one complete set for Moon, planets, and Sun. Not for: those who want to advance to tracking and astrophotography; then look at the Bresser Lyra 70\/900 with equatorial mount. Compare at <a href=\"https:\/\/www.telescoop.nl\/en\/telescopes\/telescopes-for-beginners\/\">telescopes for beginners<\/a> via <a href=\"https:\/\/www.telescoop.nl\/en\/the-best-telescope-for-beginners\/\">Buying guide<\/a>. Meer Bresser is on the <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/bresser\/\">brand page<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Optical design<\/td><td>Achromatic refractor<\/td><\/tr><tr><td>Opening<\/td><td>70 mm<\/td><\/tr><tr><td>Focal length<\/td><td>900 mm (f\/12.9)<\/td><\/tr><tr><td>Magnification with included eyepieces<\/td><td>45x and 225x<\/td><\/tr><tr><td>Mount<\/td><td>AZ-1 alt-azimutal<\/td><\/tr><tr><td>Special feature<\/td><td>Including objective-solar filter<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>The Bresser AC 70\/900 AZ-1 Sirius comes with an AZ-1 mount, aluminum tripod, 4mm and 20mm eyepieces, 3x Barlow lens, red dot finder, 90-degree star diagonal, objective solar filter, and smartphone adapter.<\/p>","protected":false},"featured_media":96369,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[128],"product_cat":[51,3177,567,430],"product_tag":[3352,3353],"class_list":["post-31979","product","type-product","status-publish","has-post-thumbnail","product_brand-bresser","product_cat-telescopen","product_cat-handmatige-refractoren","product_cat-refractor-telescopen","product_cat-telescopen-voor-beginners","product_tag-sterrenkijker","product_tag-sterrenkijkers","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":[29247,24780],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":111636,"url":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/","url_meta":{"origin":31979,"position":0},"title":"ZWO Seestar S50 Pro","author":"Info telescoop","date":"25-08-2026","format":false,"excerpt":"The ZWO Seestar S50 Pro is the successor to the Seestar S50: 50 mm quadruplet APO (260 mm, f\/5.2), two 8.3 MP 4K sensors, a 63-degree wide-angle camera for the Milky Way up to 8K, three built-in filters, a 10,000 mAh battery (up to 9 hours), and 128 GB of storage. Four capture modes for...","rel":"","context":"With 5 comments","block_context":{"text":"With 5 comments","link":"https:\/\/www.telescoop.nl\/en\/zwo-seestar-s50-pro\/#comments"},"img":{"alt_text":"ZWO Seestar S50 Pro hero","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/08\/zwo-seestar-s50-pro.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/31979","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=31979"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/96369"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=31979"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=31979"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=31979"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=31979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}