{"id":32351,"date":"2025-11-02T13:07:14","date_gmt":"2025-11-02T12:07:14","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=32351"},"modified":"2026-03-24T11:36:44","modified_gmt":"2026-03-24T10:36:44","slug":"bresser-ac-90-900-telescope-messier-ota","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/bresser-ac-90-900-telescoop-messier-ota\/","title":{"rendered":"Bresser AC 90\/900 Telescope Messier OTA"},"content":{"rendered":"

Bresser AC 90\/900 Telescope Messier OTA<\/strong><\/p>\n\n\n\n

Classic design with razor-sharp images<\/h3>\n\n\n\n

The Bresser AC 90\/900 is made for those who like to see the Moon, planets and star clusters in detail.
With its focal length of 900 mm, this refractor delivers a calm, high-contrast image - ideal for beginners and advanced users who want sharp, true-to-life results. The f\/10 aperture ratio reduces color aberrations, keeping your image bright and clean.<\/p>\n\n\n\n

\n
\"Bresser<\/figure>\n<\/figure>\n\n\n\n

Quickly ready to use<\/h3>\n\n\n\n

The telescope is compact, lightweight and easy to assemble. You can start observing right away thanks to the included accessories such as eyepiece, viewfinder and zenith mirror. Perfect if you want to quickly look into the sky without complicated settings.<\/p>\n\n\n\n

Suitable for Moon, planets and star clusters<\/h3>\n\n\n\n

With its 90 mm aperture, the telescope captures enough light to show details invisible to the naked eye.
The Moon shows deep craters and sharp edges, Jupiter its cloud bands and moons, and Saturn shines with its rings. Bright star clusters such as the Pleiades also come to life.<\/p>\n\n\n\n

\n
\"Bresser<\/figure>\n<\/figure>\n\n\n\n

Durably and reliably built<\/h3>\n\n\n\n

The aluminum tube construction is rugged but light, and the Vixen swallowtail makes it compatible with many mounts.
The telescope grows with you: ideal for expanding later with accessories or a stable mount.<\/p>\n\n\n\n

What to expect<\/h3>\n\n\n\n

\u2713 Moon: excellent fit
\u2713 Planets: visible in great detail
\u2713 Star clusters: bright and contrasty
\u2717 Deep-sky: limited by f\/10
\u2717 Astrophotography: not recommended<\/p>\n\n\n\n

Specifications<\/h3>\n\n\n\n

Optics<\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>Achromat (refractor)<\/td><\/tr>
Type<\/td>Refractor<\/td><\/tr>
Aperture (mm)<\/td>90<\/td><\/tr>
Focal length (mm)<\/td>900<\/td><\/tr>
Aperture ratio (f\/)<\/td>10<\/td><\/tr>
Resolution<\/td>1,28\u2033<\/td><\/tr>
Limit value (mag)<\/td>11,6<\/td><\/tr>
Light output relative to eye<\/td>170\u00d7<\/td><\/tr>
Max. useful magnification<\/td>180\u00d7<\/td><\/tr>
Tube construction<\/td>Full tube<\/td><\/tr>
Tube weight (kg)<\/td>2,5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Focuser<\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>Rack<\/td><\/tr>
Ocular connection<\/td>1,25\u2033<\/td><\/tr>
Connection (camera side)<\/td>T2<\/td><\/tr>
Reduction<\/td>Without<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mount<\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Type of mount<\/td>Without a mount (OTA)<\/td><\/tr>
GoTo steering<\/td>No<\/td><\/tr>
Dovetail compatibility<\/td>Vixen-style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Included accessories<\/h4>\n\n\n\n
Section<\/th>Description<\/th><\/tr><\/thead>
Ocular<\/td>26 mm Super Pl\u00f6ssl (1.25\u2033)<\/td><\/tr>
Seeker<\/td>6\u00d730 viewfinder<\/td><\/tr>
Zenith mirror<\/td>1.25\u2033, 90\u00b0 star diagonal<\/td><\/tr>
Solar filters<\/td>Yes<\/td><\/tr>
Dew cap<\/td>Yes<\/td><\/tr>
Tube Rings<\/td>Yes<\/td><\/tr>
Camera adapter<\/td>Smartphone adapter<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Series<\/td>Messier<\/td><\/tr>
Total weight (kg)<\/td>2,5<\/td><\/tr>
Observation goals<\/td>Moon & Planets, Star clusters, Nature observation<\/td><\/tr>
Astrophotography<\/td>No<\/td><\/tr>
Recommended for<\/td>Advanced<\/td><\/tr>
Observatory use<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Bresser AC 90\/900 comes with achromatic optical tube, SP 26 mm eyepiece, 6\u00d730 viewfinder, 90\u00b0 star diagonal, integrated dew cap, Vixen-Style tube rings, solar filters and smartphone camera adapter.<\/p>","protected":false},"featured_media":96602,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[128],"product_cat":[51,567],"product_tag":[],"class_list":["post-32351","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":104875,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-labzz-t3\/","url_meta":{"origin":32351,"position":0},"title":"Levenhuk LabZZ T3 - 60\/700 Refractor","author":"Abdullah Ibrar","date":"24-03-2026","format":false,"excerpt":"Levenhuk LabZZ T3 - 60\/700 Refractor comes with 4mm eyepiece, 12.5mm eyepiece, 1.5x eyepiece, 3x Barlow lens, 5x optical viewfinder, zenith mirror and aluminum tripod with accessory tray.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk LabZZ T3 - 60\/700 Refractor aluminium statief met accessoirebak","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Levenhuk-LabZZ-T3-60700-Refractor-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":105495,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-new-skyline-pro-16\/","url_meta":{"origin":32351,"position":1},"title":"Levenhuk New Skyline PRO 16\u2033 \u2013 406\/1830 Dobson","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk New Skyline PRO 16\" \u2013 406\/1830 Dobson comes with 10 mm and 25 mm Pl\u00f6ssl eyepieces, an 8x40 optical finderscope, and a primary mirror cooling system. This very powerful telescope is ideal for observing the Moon, planets, and extremely detailed deep-sky objects.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk New Skyline PRO 16 inch main setup with optical tube on Dobsonian mount","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/86287_levenhuk-new-skyline-pro-16-telescope_00_500_465f630cb432cbffc2c1740e1897afbc.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":105023,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-blitz-50-base\/","url_meta":{"origin":32351,"position":2},"title":"Levenhuk Blitz 50 BASE \u2013 50\/600 Refractor","author":"Abdullah Ibrar","date":"01-04-2026","format":false,"excerpt":"The Levenhuk Blitz 50 BASE \u2013 50\/600 Refractor comes with 6mm and 20mm eyepieces, a 3x Barlow lens, a 5x24 finder scope, a diagonal mirror, and an aluminum tripod. This user-friendly beginner telescope is ideal for observing the Moon, bright objects, and simple daytime nature observation.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk Blitz 50 BASE achromatic refractor on a fully extended aluminum tripod, showing the complete setup from the front.","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/77098_levenhuk-blitz-50-base-telescope_00.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":105543,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-skyline-travel-70\/","url_meta":{"origin":32351,"position":3},"title":"Levenhuk Skyline Travel 70 - 70\/400 Refractor","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk Skyline Travel 70 \u2013 70\/400 Refractor comes with 10mm and 20mm eyepieces, a 3x Barlow lens, a 5x24 finderscope, a diagonal prism, an aluminum tripod, and a backpack. This compact travel telescope is ideal for observing the Moon, bright planets, and nature.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk Skyline Travel 70 compact refractor with included backpack for easy transportation","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/levenhuk-telescope-skyline-travel-70_ZHSMksd_500_784c0dc006013c7ff5ad43e1c4c51569.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":106246,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-discovery-spark-767-az\/","url_meta":{"origin":32351,"position":4},"title":"Levenhuk Discovery Spark 767 AZ \u2013 76\/700 Newtonian Reflector","author":"Abdullah Ibrar","date":"05-04-2026","format":false,"excerpt":"The Levenhuk Discovery Spark 767 AZ \u2013 76\/700 Newtonian reflector comes with SR4mm, H12.5mm, and H20mm eyepieces, a 2x Barlow lens, an optical finder, an aluminum tripod with an accessory tray, and the colorful knowledge book \u201cSpace. Not an Empty Void.\u201d Ideal for beginners who want to discover the Moon, planets, and deep-sky objects.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk Discovery Spark 767 AZ complete set met Newton-reflector op alt-azimut montering en aluminium statief op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/79071_discovery-spark-767-az-telescope_00_500_8a8d4daec6536c85fe839f5bcbed1b02.webp?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":107590,"url":"https:\/\/www.telescoop.nl\/en\/televue-oculairtas-transporttas\/","url_meta":{"origin":32351,"position":5},"title":"TeleVue Oculairtas \u2013 Carrying Case","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"TeleVue Oculairtas \u2013 transporttas wordt geleverd met stevige foamvoering en biedt ruimte aan maximaal 13 oculairs en accessoires.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Transporttas Oculairtas gesloten grijze nylon oculairtas met handgrepen, ritssluiting en schouderriem op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/32351","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=32351"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/96602"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=32351"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=32351"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=32351"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=32351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}