{"id":31930,"date":"2025-11-01T11:38:02","date_gmt":"2025-11-01T10:38:02","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=31930"},"modified":"2026-03-24T11:36:33","modified_gmt":"2026-03-24T10:36:33","slug":"bresser-messier-90-900-refractor-exos-1","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-900-refractor-exos-1\/","title":{"rendered":"Bresser Messier 90\/900 Refractor EXOS-1"},"content":{"rendered":"

Bresser AC 90\/900 - Sharp images of Moon and Planets with stable EXOS-1 mount<\/strong><\/p>\n\n\n\n

The Bresser AC 90\/900<\/strong> is an ideal telescope for anyone who wants to see the Moon, planets and star clusters in detail. With its 90 mm lens, it captures a lot of light, giving you bright and high-contrast images. The longer focal length of 900 mm gives sharp magnifications - perfect for those who want to see more detail on Jupiter, Saturn or the lunar surface.<\/p>\n\n\n\n

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

Sharp, clear and true-to-life image<\/strong>
The achromatic lens<\/strong> corrects color aberrations and delivers a natural image. That means you can view bright objects such as the Moon or Venus without distracting color glare. The f\/10 aperture ratio keeps your image calm and sharp even at higher magnifications - so every detail remains visible.<\/p>\n\n\n\n

Sturdy EXOS-1 mount for flicker-free images<\/strong>
The included EXOS-1 mount<\/strong> provides the stability you need for relaxed observation. This mount can carry up to 7 kg, keeping the telescope stable even in windy conditions or heavier accessories. Want even smoother tracking? Expand it with a motor for automatic tracking. This will keep your target object neatly in view while you observe or take pictures.<\/p>\n\n\n\n

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

User-friendly and fully equipped<\/strong>
The telescope is ready to use immediately. In the box you will find everything you need: a 26 mm eyepiece<\/strong>, 6\u00d730 viewfinder<\/strong>, 90\u00b0 zenith mirror<\/strong>, sunscreen<\/strong>, star map<\/strong> and even a smartphone adapter<\/strong>. Perfect for getting started right away - or for capturing your first photo of the Moon.<\/p>\n\n\n\n

What to expect<\/strong>
\u2713 Moon:<\/strong> Sharp craters, mountains and shadows in exquisite detail
\u2713 Planets:<\/strong> clear cloud bands on Jupiter and the rings of Saturn
\u2713 Star clusters:<\/strong> brightly visible with sharp star points
\u2717 Deep-sky:<\/strong> limited visibility due to long focal length
\u2717 Astrophotography:<\/strong> only suitable with additional motor or accessories<\/p>\n\n\n\n

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

Optics<\/strong><\/p>\n\n\n\n

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

Focuser<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>Rack Focuser<\/td><\/tr>
Ocular connection<\/td>1,25\u2033<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mount<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Equatorial<\/td><\/tr>
Design<\/td>EXOS-1<\/td><\/tr>
GoTo steering<\/td>No<\/td><\/tr>
Carrying capacity (kg)<\/td>7<\/td><\/tr>
Weight (kg)<\/td>4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Tripod<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Tripod<\/td><\/tr>
Material<\/td>Steel<\/td><\/tr>
Weight (kg)<\/td>4,7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Included accessories<\/strong><\/p>\n\n\n\n

Section<\/th>Description<\/th><\/tr><\/thead>
Ocular<\/td>SP 26 mm (1.25\u2033)<\/td><\/tr>
Seeker<\/td>6\u00d730<\/td><\/tr>
Zenith mirror<\/td>90\u00b0 star diagonal (1.25\u2033)<\/td><\/tr>
Solar filter<\/td>Includes<\/td><\/tr>
Smartphone adapter<\/td>Yes<\/td><\/tr>
Rotating star chart<\/td>Yes<\/td><\/tr>
Counterweight<\/td>2 kg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

General<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Series<\/td>Messier<\/td><\/tr>
Shipping weight (kg)<\/td>14,7<\/td><\/tr>
Observation goals<\/td>Moon & Planets, Nebulae & Galaxies<\/td><\/tr>
Sun Observation<\/td>Only with suitable sunscreen<\/td><\/tr>
Astrophotography<\/td>Only with suitable accessories<\/td><\/tr>
Recommended for<\/td>Beginners<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Bresser AC 90\/900 comes with EXOS-1 mount, 26mm Super Pl\u00f6ssl eyepiece, 6\u00d730 viewfinder, 90\u00b0 zenith prism, solar filter, rotating star chart, smartphone adapter, counterweight and steel tripod - perfect for beginners who want sharp images of the moon, planets and star clusters.<\/p>","protected":false},"featured_media":96316,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[128],"product_cat":[51,567],"product_tag":[],"class_list":["post-31930","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":32142,"url":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-900-refractor-goto\/","url_meta":{"origin":31930,"position":0},"title":"Bresser Messier 90\/900 Refractor GoTo","author":"","date":"01-11-2025","format":false,"excerpt":"Bresser AC 90\/900 EXOS 2 comes with EXOS-2 GoTo mount and hand controller, stainless steel tripod, 6\u00d730 viewfinder, 26 mm eyepiece, 90\u00b0 star diagonal and solar filters.\u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":32351,"url":"https:\/\/www.telescoop.nl\/en\/bresser-ac-90-900-telescoop-messier-ota\/","url_meta":{"origin":31930,"position":1},"title":"Bresser AC 90\/900 Telescope Messier OTA","author":"","date":"02-11-2025","format":false,"excerpt":"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.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":31860,"url":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-1200-refractor-exos-1\/","url_meta":{"origin":31930,"position":2},"title":"Bresser Messier 90\/1200 Refractor EXOS-1","author":"","date":"30-10-2025","format":false,"excerpt":"Bresser AC 90\/1200 comes with EXOS-1 mount, 26mm eyepiece, 6x30 viewfinder, 90\u00b0 zenith prism, slow-motion cables and stable steel tripod - 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