{"id":92148,"date":"2026-01-03T16:57:39","date_gmt":"2026-01-03T15:57:39","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=92148"},"modified":"2026-09-10T14:45:43","modified_gmt":"2026-09-10T12:45:43","slug":"omegon-pro-rc-203-1624-ota-ritchey-chretien","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-203-1624-ota-ritchey-chretien\/","title":{"rendered":"Omegon Pro RC 203\/1624 OTA Ritchey-Chretien"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\">Omegon Pro RC 203\/1624 OTA Ritchey-Chretien: the most popular RC size, sharply priced<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Omegon Pro RC 203\/1624<\/strong> In a classic design, the most popular RC size under one thousand euros features 8-inch hyperbolic quartz mirrors (f\/8) in a steel tube assembly with a 2-inch Crayford focuser. The coma-free field is immediately camera-ready; a corrector is not needed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">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<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-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-203-1624-OTA-9.jpg\" alt=\"Omegon Pro RC 203\/1624 Ritchey-Chr\u00e9tien\" 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\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-203-1624-OTA-4.jpg\" alt=\"The Crayford focuser of the Omegon RC 203\/1624\" title=\"\"><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h4 class=\"wp-block-heading\">Quartz mirrors: focus that endures<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Quartz hardly expands at all when temperatures fluctuate: the brand point hardly shifts at all overnight, so you don\u2019t have to readjust it as often. The integrated baffles and high-quality mirror coating maintain high contrast.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With the 1624 mm brand lens, you can photograph galaxies and compact nebulae at a serious magnification; the Losmandy swallowtail requires an EQ6-class mount.<\/p>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Included<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ritchey-Chr\u00e9tien optics 203\/1624 with hyperbolic quartz mirrors<\/li>\n\n\n<li>Steel tube construction<\/li>\n\n\n<li>2 inch Crayford focuser<\/li>\n\n\n<li>Integrated baffles<\/li>\n\n\n<li>High-quality mirror coating<\/li>\n\n\n<li>Losmandy dovetail<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Featured accessories<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The Omegon Pro UHC 2-inch filter (89 euros) brings out emission nebulae, and the Omegon Powerbank 10k 12V (39.90 euros) keeps the entire setup powered for a night.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">For whom yes, for whom no<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Pros: advanced astrophotographers who want the 8-inch RC formula for the sharpest price. Cons: those who want carbon stability and tilt correction on this optics; that is precisely what the carbon version adds. Are you hesitating between the models? The <a href=\"\/en\/telescope-selection-aid\/\">Choice assistant<\/a> helpt. More Omegon is on the <a href=\"\/en\/brands\/omegon\/\">merk page<\/a>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Specifications<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th>Value<\/th><\/tr><\/thead><tbody><tr><td>Opening<\/td><td>203 mm<\/td><\/tr><tr><td>Focal length<\/td><td>1624 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/8<\/td><\/tr><tr><td>Optical design<\/td><td>Ritchey-Chr\u00e9tien (hyperbolic quartz mirrors)<\/td><\/tr><tr><td>Tubus<\/td><td>Steel<\/td><\/tr><tr><td>Focuser<\/td><td>2-inch Crayford<\/td><\/tr><tr><td>Dovetail<\/td><td>Losmandy<\/td><\/tr><tr><td>Execution<\/td><td>OTA (loose tube)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>The Omegon Pro RC 203\/1624 comes with hyperbolic quartz mirrors, a 2-inch Crayford focuser, integrated baffles, a Losmandy dovetail, a steel tube construction, and a high-quality mirror coating.<\/p>","protected":false},"featured_media":98626,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[51,428,2972,3167],"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-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":"The Omegon Pro RC 203\/1624 comes with hyperbolic quartz mirrors, carbon tube, 2-inch linear bearing focuser, tilt adapter, integrated baffles, and Losmandy dovetail: 8-inch RC with maximum control.","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":92127,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-250-2000-ota\/","url_meta":{"origin":92148,"position":1},"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":"Omegon Pro RC 250\/2000 Carbon OTA Ritchey-Chr\u00e9tien telescoop met volledige buis","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":92206,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-355-2845-ota\/","url_meta":{"origin":92148,"position":2},"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":92136,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-rc-154-1370-ota-ritchey-chretien\/","url_meta":{"origin":92148,"position":3},"title":"Omegon Pro RC 154\/1370 OTA Ritchey-Chretien","author":"","date":"03-01-2026","format":false,"excerpt":"The Omegon Pro RC 154\/1370 comes with hyperbolic BK7 glass mirrors, a Crayford focuser, an integrated baffle structure, a Losmandy dovetail, and a high-reflectivity coating: the most affordable path to RC astrophotography.","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-154-1370-OTA-9.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92196,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-newton-355-2845-lichtgewicht-truss-ota\/","url_meta":{"origin":92148,"position":4},"title":"Omegon Pro Newton 355\/2845 Lightweight Truss OTA","author":"","date":"03-01-2026","format":false,"excerpt":"The Omegon Pro RC 355\/2845 Lightweight Truss comes with an open carbon truss tube, quartz honeycomb primary mirror, 3-inch monorail focuser, fan system, Losmandy dovetail, three extension tubes, and precision collimation.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Pro RC 355\/2845 lichtgewicht truss OTA Ritchey-Chr\u00e9tien telescoop","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Ritchey-Chretien-Pro-RC-355-2845-lichtgewicht-truss-OTA-7.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":5},"title":"Omegon Pro RC 406\/3250 Truss OTA - 406mm Ritchey-Chr\u00e9tien","author":"Info telescoop","date":"03-01-2026","format":false,"excerpt":"The Omegon Pro RC 406\/3250 Truss comes with an open carbon truss tube, quartz honeycomb primary mirror, 3-inch monorail focuser, powerful fan, extension tubes, and Losmandy dovetail: 16 inches for the sharpest price.","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":[]}],"_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}]}}