A Ritchey-Chr\u00e9tien uses two hyperbolic mirrors: the design of virtually every professional observatory. The result is a large, coma-free field of view without a corrector: stars remain round all the way to the edges of the sensor.<\/p>\n\n\n\n Kwarts zet bij temperatuurwisselingen nauwelijks uit: het brandpunt verloopt 's nachts vrijwel niet, dus je hoeft minder vaak bij te stellen. De ge\u00efntegreerde baffles en de hoogwaardige spiegelcoating houden het contrast hoog.<\/p>\n\n\n\n Met 1624 mm brandpunt fotografeer je sterrenstelsels en compacte nevels op een serieuze beeldschaal; de Losmandy-zwaluwstaart vraagt om een EQ6-klasse montering.<\/p>\n<\/div>\n<\/div>\n\n\n\n Het Omegon Pro UHC 2 inch filter (89 euro) haalt emissienevels naar voren en de Omegon Powerbank 10k 12V (39,90 euro) houdt de complete opstelling een nacht op spanning.<\/p>\n\n\n\n Wel: gevorderde astrofotografen die de 8 inch RC-formule voor de scherpste prijs willen. Niet: wie carbon-stabiliteit en tilt-correctie op deze optiek wil; dat is precies wat de carbon-uitvoering toevoegt. Twijfel je tussen de modellen? De Choice assistant<\/a> helpt. More Omegon is on the merk page<\/a>.<\/p>\n\n\n\n De Omegon Pro RC 203\/1624 wordt geleverd met hyperbolische kwartsspiegels, 2 inch Crayford-focuser, ge\u00efntegreerde baffles, Losmandy-zwaluwstaart, stalen buisconstructie en hoogwaardige spiegelcoating.<\/p>","protected":false},"featured_media":98626,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[51,428,531,2972,3167],"product_tag":[],"class_list":["post-92148","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-gevorderd","product_cat-reflector-telescopen","product_cat-ritchey-chretien-telescopen","product_shipping_class-licht","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":[25035,93445],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":92117,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-203-1624-ota\/","url_meta":{"origin":92148,"position":0},"title":"Omegon Pro RC 203\/1624 OTA","author":"","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro RC 203\/1624 wordt geleverd met hyperbolische kwartsspiegels, carbonbuis, 2 inch linear bearing focuser, tilt-adapter, ge\u00efntegreerde baffles en Losmandy-zwaluwstaart: 8 inch RC met maximale controle.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Volledige-buis-Ritchey-Chretien-Pro-RC-203-1624-OTA-7.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92206,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-355-2845-ota\/","url_meta":{"origin":92148,"position":1},"title":"Omegon Pro RC 355\/2845 - Ritchey-Chretien Truss OTA","author":"Info telescoop","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro RC 355\/2845 Truss wordt geleverd met open carbon truss-tubus, hyperbolische kwartsspiegels met honingraatstructuur, 3 inch monorail focuser, krachtige ventilators, verlengstukken en Losmandy-zwaluwstaart.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-355-2845-Truss-OTA-5.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92127,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-250-2000-ota\/","url_meta":{"origin":92148,"position":2},"title":"Omegon Pro RC 250\/2000 OTA","author":"","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro RC 250\/2000 wordt geleverd met 3 inch roteerbare focuser, hyperbolische kwartsspiegels, Losmandy-zwaluwstaart, tilt-adapter, ge\u00efntegreerde baffles en carbonbuis: de grootste RC met volle buis.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Carbon-Volledige-buis-Ritchey-Chretien-Pro-RC-250-2000-OTA-6.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92224,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-406-3250-truss-ota\/","url_meta":{"origin":92148,"position":3},"title":"Omegon Pro RC 406\/3250 Truss OTA - 406mm Ritchey-Chr\u00e9tien","author":"Info telescoop","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro RC 406\/3250 Truss wordt geleverd met open carbon truss-tubus, honingraat-hoofdspiegel van kwarts, 3 inch monorail focuser, krachtige ventilator, verlengstukken en Losmandy-zwaluwstaart: 16 inch voor de scherpste prijs.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-406-3250-Truss-OTA-4.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92172,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-newton-304-2432-lichtgewicht-truss-ota\/","url_meta":{"origin":92148,"position":4},"title":"Omegon Pro Newton 304\/2432 Lightweight Truss OTA","author":"","date":"03-01-2026","format":false,"excerpt":"The Omegon Pro RC 304\/2432 Lightweight Truss comes with an open carbon truss tube, hyperbolic quartz mirrors, a honeycomb primary mirror, a 3-inch monorail focuser, a fan, three extension tubes, and a Losmandy dovetail.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-304-2432-lichtgewicht-truss-OTA-7.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92182,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-newton-304-2432-truss-ota\/","url_meta":{"origin":92148,"position":5},"title":"Omegon Pro Newton 304\/2432 Truss OTA","author":"","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro RC 304\/2432 Truss wordt geleverd met open carbon truss-tubus, hyperbolische kwartsspiegels, 3 inch monorail focuser, ventilator, drie verlengstukken, instelbare spiegeldrager en Losmandy-zwaluwstaart.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-304-2432-Truss-OTA-10.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/92148","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=92148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/98626"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=92148"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=92148"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=92148"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=92148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"Omegon](\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-203-1624-OTA-9.jpg\" "\\"\\"")
<\/figure>\n<\/figure>\n\n\n\n![\"De](\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-203-1624-OTA-4.jpg\" "\\"\\"")
<\/figure>\n<\/div>\n\n\n\nKwartsspiegels: focus die blijft staan<\/h4>\n\n\n\n
Included<\/h4>\n\n\n\n
\n
Featured accessories<\/h4>\n\n\n\n
For whom yes, for whom no<\/h4>\n\n\n\n
Specifications<\/h4>\n\n\n\n
Feature<\/th> Value<\/th><\/tr><\/thead> Opening<\/td> 203 mm<\/td><\/tr> Focal length<\/td> 1624 mm<\/td><\/tr> Opening ratio<\/td> f\/8<\/td><\/tr> Optical design<\/td> Ritchey-Chr\u00e9tien (hyperbolic quartz mirrors)<\/td><\/tr> Tubus<\/td> Steel<\/td><\/tr> Focuser<\/td> 2-inch Crayford<\/td><\/tr> Dovetail<\/td> Losmandy<\/td><\/tr> Execution<\/td> OTA (loose tube)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"