{"id":92095,"date":"2026-01-03T15:18:31","date_gmt":"2026-01-03T14:18:31","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92095"},"modified":"2026-03-04T16:23:17","modified_gmt":"2026-03-04T15:23:17","slug":"omegon-203-800-pro-astrograph-ota","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/omegon-203-800-pro-astrograph-ota\/","title":{"rendered":"Omegon 203\/800 Pro Astrograph Carbon OTA"},"content":{"rendered":"

Omegon 203\/800 Telescope Pro -.<\/strong> Maximum control for serious astrophotography<\/strong>
The Omegon Pro Astrograph 203\/800 Carbon is made for those who want to capture more detail. More light. More sharpness. More depth. This astrograph combines a large aperture with a stable carbon tube and precise mechanics. This keeps your image reliably sharp, even during long exposures.<\/p>\n\n\n\n

Fast f\/4 optics for faint deep-sky objects<\/strong>
With an aperture ratio of f\/4, you work quickly and efficiently. You collect a lot of light in a short time. That makes this telescope ideal for nebulae, galaxies and fine structures. Even faint details come out clearly, without extremely long exposures.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

Carbon tube keeps your focus<\/strong>
Temperature changes during the night. Your focus doesn't. The carbon tube has extremely low expansion and prevents focus shift. Thus, stars stay sharp from start to finish. This is especially important in automated sessions and long shooting sequences.<\/p>\n\n\n\n

Accurate 2\u2033 Rack & Pinion focuser<\/strong>
The 2\u2033 R&P focuser operates smoothly and without backlash. With 50 mm of adjustment travel and a 1:10 fine adjustment, you focus precisely. Even heavy cameras remain stable. The M56 threaded connection allows you to mount your camera without backlash and perfectly centered.<\/p>\n\n\n\n

More light thanks to high-quality mirror coating<\/strong>
The parabolic main mirror has a reflectivity of 94%. That extra light really makes a difference in faint objects. Your images get more contrast and more detail, especially in the outer regions of nebulae and galaxies.<\/p>\n\n\n\n

\"Omegon<\/figure>\n\n\n\n

CNC-milled rings for absolute stability<\/strong>
The tube rings and dovetail are CNC-milled from aluminum. This prevents flex and keeps your field of view perfectly aligned. Even with heavy accessories, everything remains stable. Ideal for long exposures and mosaic shots.<\/p>\n\n\n\n

Compact design with great performance<\/strong>
Despite its size, the 203\/800 remains surprisingly manageable. The compact design reduces the load on your mount and improves balance. Thus, this astrograph integrates effortlessly into a fixed mount or a mobile setup.<\/p>\n\n\n\n

What we recommend<\/strong>
\u2713 Astrophotography: excellent
\u2713 Nebulae & Galaxies: very suitable
\u2713 Moon & Planets: well possible
\u2717 Nature observation: not suitable
\u2717 Beginners: not recommended<\/p>\n\n\n\n

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

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Reflector<\/td><\/tr>
Design<\/td>Newton<\/td><\/tr>
Aperture (mm)<\/td>203<\/td><\/tr>
Focal length (mm)<\/td>800<\/td><\/tr>
Aperture ratio (f\/)<\/td>4<\/td><\/tr>
Resolution (arcsec)<\/td>0,58<\/td><\/tr>
Limit value (mag)<\/td>13,3<\/td><\/tr>
Light output relative to eye<\/td>820\u00d7<\/td><\/tr>
Max. useful magnification<\/td>400\u00d7<\/td><\/tr>
Tube material<\/td>Carbon<\/td><\/tr>
Tube length (mm)<\/td>697<\/td><\/tr>
Tube diameter (mm)<\/td>235<\/td><\/tr>
Tube construction<\/td>Full tube<\/td><\/tr>
Coating<\/td>Aluminum & silicon dioxide<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Reflector<\/strong><\/p>\n\n\n\n

Feature<\/th>Description<\/th><\/tr><\/thead>
Head mirror design<\/td>Parabolic<\/td><\/tr>
Main mirror material<\/td>BK7<\/td><\/tr>
Reflectivity<\/td>94%<\/td><\/tr>
Capture mirror diameter (mm)<\/td>70<\/td><\/tr>
Obstruction catch mirror (%)<\/td>35<\/td><\/tr>
Main mirror ventilation<\/td>No<\/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 & Pinion<\/td><\/tr>
Ocular connection<\/td>2\u2033<\/td><\/tr>
Reduction<\/td>1:10 finesse<\/td><\/tr>
Connection (camera side)<\/td>M56<\/td><\/tr>
Adjustment range (mm)<\/td>50<\/td><\/tr>
Ring clamp<\/td>Yes<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>OTA<\/td><\/tr>
Type of mount<\/td>Without mount<\/td><\/tr>
GoTo steering<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Section<\/th>Description<\/th><\/tr><\/thead>
Tube Rings<\/td>Yes<\/td><\/tr>
Eyepiece adapter<\/td>1,25\u2033 & 2\u2033<\/td><\/tr>
Dovetail<\/td>Losmandy-Style<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Series<\/td>Pro Astrograph<\/td><\/tr>
Variant<\/td>203\/800 Carbon<\/td><\/tr>
Total weight (kg)<\/td>7,5<\/td><\/tr>
Color<\/td>Black<\/td><\/tr>
Dimensions (l\u00d7w\u00d7h mm)<\/td>700 \u00d7 290 \u00d7 350<\/td><\/tr>
Application<\/td>Astrophotography, Moon & Planets, Nebulae & Galaxies<\/td><\/tr>
Sun<\/td>Not recommended (only with appropriate sunscreens)<\/td><\/tr>
Recommended for<\/td>Advanced<\/td><\/tr>
Observatory use<\/td>No<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Omegon 203\/800 Telescope<\/strong>\u00a0Comes with carbon tube, 2\u2033 Rack & Pinion focuser with M56 connector, CNC tube rings, Losmandy swallowtail, viewfinder base and dust cover - ideal for advanced astrophotographers desiring sharp deep-sky images with high light output and mechanical stability.<\/span><\/p>","protected":false},"featured_media":98580,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[51,428,2972],"product_tag":[],"class_list":["post-92095","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-newton-reflectors","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":91956,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-114-456-newton-astrograph-ota-carbon\/","url_meta":{"origin":92095,"position":0},"title":"Omegon Pro 114\/456 Newton Astrograph OTA Carbon","author":"","date":"02-01-2026","format":false,"excerpt":"Omegon 114\/456 Telescoop\u00a0wordt geleverd met parabolische hoofdspiegel, CNC-buisringen, Vixen-Style zwaluwstaart, stofkap en zoekervoet \u2013 ideaal voor gevorderde astrofotografen die heldere deep-sky opnamen willen vastleggen in een compacte en stabiele buis.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-114-456-OTA-6.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-114-456-OTA-6.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-114-456-OTA-6.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-114-456-OTA-6.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":92085,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-154-600-pro-astrograph-carbon-ota\/","url_meta":{"origin":92095,"position":1},"title":"Omegon 154\/600 Pro Astrograph Carbon OTA","author":"","date":"03-01-2026","format":false,"excerpt":"Omegon 154\/600 Telescoop\u00a0wordt geleverd met carbonbuis, 2\" Rack & Pinion focuser met M56-aansluiting, CNC-buisringen, Losmandy-zwaluwstaart, zoekervoet en stofkap \u2013 ideaal voor gevorderde astrofotografen die zoeken naar precisie, stabiliteit en lichtsterkte in een compacte f\/4-astrograph.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-154-600-OTA-8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-154-600-OTA-8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-154-600-OTA-8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Telescoop-Pro-Astrograph-Carbon-154-600-OTA-8.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":30071,"url":"https:\/\/staging.telescoop.nl\/en\/celestron-rasa-800-203-400-astrograph-cgem-ii-goto\/","url_meta":{"origin":92095,"position":2},"title":"Celestron RASA 800 203\/400 Astrograph CGEM II GoTo","author":"","date":"04-10-2025","format":false,"excerpt":"Celestron Telescope Astrograph S 203\/400 RASA 800 CGEM II GoTo comes with CGEM II GoTo mount, NexStar+ hand controller, steel tripod, 2x 7.7 kg counterweight, camera adapters (Canon\/Nikon\/Sony) and power cable.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Celestron Telescoop Astrograph S 203\/400 RASA 800 CGEM II GoTo","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/10\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-CGEM-II-GoTo.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":92117,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-rc-203-1624-ota\/","url_meta":{"origin":92095,"position":3},"title":"Omegon Pro RC 203\/1624 OTA","author":"","date":"03-01-2026","format":false,"excerpt":"Omegon Pro RC 203\/1624 Telescoop\u00a0wordt geleverd met hyperbolische kwarts spiegels, 2\" linear bearing focuser, tilt-adapter, ge\u00efntegreerde baffle-structuur, Losmandy zwaluwstaart en carbonbuis \u2013 ideaal voor gevorderde astrofotografen die hoge resolutie en rand-tot-rand scherpte zoeken zonder corrector.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Volledige-buis-Ritchey-Chretien-Pro-RC-203-1624-OTA-8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Volledige-buis-Ritchey-Chretien-Pro-RC-203-1624-OTA-8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Volledige-buis-Ritchey-Chretien-Pro-RC-203-1624-OTA-8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Volledige-buis-Ritchey-Chretien-Pro-RC-203-1624-OTA-8.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":16285,"url":"https:\/\/staging.telescoop.nl\/en\/apochromatische-telescoop-203mm-f-4-astrograph-voor-astrofotografie\/","url_meta":{"origin":92095,"position":4},"title":"Apochromatic telescope 203mm f\/4 astrograph for astrophotography","author":"Info telescoop","date":"23-07-2025","format":false,"excerpt":"Apochromatische telescoop 203mm f\/4 astrograph voor astrofotografie \u2013 8\" Newton met hoge lichtopbrengst, geventileerde spiegel, Crayford focuser en grote vangspiegel voor full-frame fotografie.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Apochromatisches Teleskop 203mm f\/4 Astrograph f\u00fcr Astrofotografie","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Telescoop-Pro-Astrograph-203-800-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":12260,"url":"https:\/\/staging.telescoop.nl\/en\/celestron-rasa-8-203-400-avx-goto-astrograph\/","url_meta":{"origin":92095,"position":5},"title":"Celestron RASA 8 203\/400 Newton Advanced VX GoTo","author":"","date":"26-02-2025","format":false,"excerpt":"\u00a0 Celestron Telescoop Astrograph S 203\/400 RASA 800 AVX GoTo wordt geleverd met 280 mm EdgeHD-optiek, Advanced VX GoTo-montering, NexStar+ controller, statief, 9x50 zoeker en 40 mm oculair \u2013 ideaal voor geavanceerde visuele waarneming en professionele astrofotografie. \u00a0 \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/staging.telescoop.nl\/wp-content\/uploads\/2025\/02\/Celestron-Telescoop-Astrograph-S-203-400-RASA-800-AVX-GoTo-8.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/92095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/comments?post=92095"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98580"}],"wp:attachment":[{"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=92095"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=92095"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=92095"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/staging.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=92095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}