{"id":16234,"date":"2025-07-23T05:38:50","date_gmt":"2025-07-23T03:38:50","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=16234"},"modified":"2026-08-25T15:09:58","modified_gmt":"2026-08-25T13:09:58","slug":"omegon-104mm-triplet-refractor-astrophotography","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-104mm-triplet-refractor-astrofotografie\/","title":{"rendered":"Omegon 104 mm Triplet Refractor"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\">Omegon 104 mm Triplet Refractor: the full-frame workhorse without frills<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Omegon 104 mm Triplet<\/strong> is a professional astrograph in its most basic, best-priced form: an air-separated triplet with FPL-53 and FPL-51 elements, a 650 mm brand focal length (f\/6.25), and a robust 2.9-inch focuser with an M74 mount. Razor-sharp stars all the way to the edge of the image, even on full-frame sensors.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">An apochromat converges all colors to a focal point. Stars remain white and point-like, without the purple edges of simple lenses: precisely what a camera sensor would mercilessly reveal.<\/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\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-Triplet-OTA-11-1024x1024.jpg\" alt=\"Omegon 104 mm triplet apochromat for astrophotography\" title=\"\"><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-Triplet-OTA-6-1024x1024.jpg\" alt=\"Omegon 104 mm triplet from the side\" 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\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-Triplet-OTA-4-1024x1024.jpg\" alt=\"The 2.9-inch focuser with M74 connection of the Omegon 104 mm\" 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\">2.9-inch focuser: fully illuminated field<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The large focuser prevents vignetting on large sensors and the M74 connection couples securely to heavy camera trains. The 175 mm backfocus leaves room for a filter wheel and off-axis guider.<\/p>\n<\/div>\n<\/div>\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\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-Triplet-OTA-5-1024x1024.jpg\" alt=\"The triplet lens cell of the Omegon 104 mm\" 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\">FPL-53 plus FPL-51: maximum color correction<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The combination of two types of ED glass in an air-spaced doublet suppresses color errors below the limit of visibility. What remains is contrast: nebulosity edges, dust lanes, and star colors just as they are.<\/p>\n<\/div>\n<\/div>\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\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-104-650-ED-Triplet-OTA-12-1024x1024.jpg\" alt=\"Omegon 104 mm triplet with retracted dew shield\" 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\">Compact for its class<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">With a retracted tube length of 564 mm, this astrograph fits in a standard flight case and on mid-range mounts. The version with a matching field flattener and case is available in our product range as a separate set.<\/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>Air-spaced triplet 104\/650 with FPL-53 and FPL-51 elements<\/li>\n\n\n<li>2.9-inch focuser with M74 connection<\/li>\n\n\n<li>Scope rings with dovetail mount<\/li>\n\n\n<li>Extendable dew shield<\/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 under light-polluted skies, and the Omegon Powerbank 10k 12V (39.90 euros) keeps the mount and camera 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: astrophotographers who want the optics and already have the correction at home or will choose it later. Cons: anyone who immediately wants a completely corrected system; the Pro APO 104\/650 with 2-inch field flattener and case is then the more logical purchase. Are you in doubt 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>104 mm<\/td><\/tr><tr><td>Focal length<\/td><td>650 mm<\/td><\/tr><tr><td>Opening ratio<\/td><td>f\/6.25<\/td><\/tr><tr><td>Optical design<\/td><td>Air-spaced triplet with FPL-53 and FPL-51<\/td><\/tr><tr><td>Focuser<\/td><td>2.9-inch with M74 connection<\/td><\/tr><tr><td>Backfocus<\/td><td>175 mm<\/td><\/tr><tr><td>Tube length<\/td><td>564 mm (retracted)<\/td><\/tr><tr><td>Execution<\/td><td>OTA (loose tube)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>The Omegon 104 mm Triplet features an air-separated FPL-53\/FPL-51 objective lens, a 650 mm brand focal point, and a 2.9-inch focuser with M74: professional full-frame astrophotography in its most basic, best-priced form.<\/p>","protected":false},"featured_media":22084,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[567,428,3175,51],"product_tag":[],"class_list":["post-16234","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-refractor-telescopen","product_cat-telescopen-voor-astrofotografie","product_cat-refractor-ota","product_cat-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":91980,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-104-650-apo-refractor-ota-field-flattener\/","url_meta":{"origin":16234,"position":0},"title":"Omegon Pro 104\/650 APO Refractor OTA + 2\u2033 Field Flattener","author":"","date":"02-01-2026","format":false,"excerpt":"The Omegon Pro APO AP 104\/650 comes with an FPL-53\/FPL-51 triplet objective, 2.9-inch dual-speed focuser, field flattener, 1.25\/2-inch adapter, and aluminum carrying case: the fully corrected flagship.","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-Apochromatische-refractor-Pro-APO-AP-104-650-ED-OTA-2-Field-Flattener-16.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":16190,"url":"https:\/\/www.telescoop.nl\/en\/omegon-110-660-pro-apo-ed-carbon-ota\/","url_meta":{"origin":16234,"position":1},"title":"Omegon 110\/660 Pro APO ED Carbon OTA","author":"Info telescoop","date":"19-07-2025","format":false,"excerpt":"The Omegon 110\/660 Pro APO ED Carbon comes with FPL-53 optics, a 9.7 lb (4.8 kg) carbon tube, a 2.7-inch Power Linear Crayford focuser, adapters, and an aluminum case: maximum aperture, minimum weight.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon 110\/660 Pro APO ED Carbon OTA","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-110-660-ED-Carbon-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":16264,"url":"https:\/\/www.telescoop.nl\/en\/apochromatische-telescoop-152mm-triplet-voor-astrofotografie\/","url_meta":{"origin":16234,"position":2},"title":"Apochromatic telescope 152mm triplet for astrophotography","author":"Info telescoop","date":"23-07-2025","format":false,"excerpt":"The Omegon 152mm Triplet offers an air-spaced FCD-1 objective with adjustable lens cell, 1200mm focal length, and a 2-inch Crayford focuser: top-class optics for observatories, binoviewing, and high-resolution photography.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Apochromatisches Teleskop 152mm Triplett f\u00fcr Astrofotografie","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/07\/Omegon-Apochromatische-refractor-Pro-APO-AP-152-1200-ED-Triplet-OTA.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":92019,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-85-510-apochromatische-refractor-triplet-ed-fcd-100\/","url_meta":{"origin":16234,"position":3},"title":"Omegon Pro 85\/510 Apochromatic Refractor Triplet ED FCD-100","author":"","date":"03-01-2026","format":false,"excerpt":"The Omegon Pro APO AP 85\/510 comes with an FCD-100 ED triplet objective, 2.5-inch rack and pinion focuser with reduction, CNC tube rings, Vixen dovetail, finder bracket, and retractable dew shield.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Pro APO AP 85\/510 Triplet ED FCD-100 apochromatische refractor","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/01\/Omegon-Apochromatische-refractor-Pro-APO-AP-85-510-Triplet-ED-FCD-100-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":92024,"url":"https:\/\/www.telescoop.nl\/en\/omegon-pro-85-560-apochromatische-refractor-ed-triplet-ota\/","url_meta":{"origin":16234,"position":4},"title":"Omegon Pro 85\/560 Apochromatic Refractor ED Triplet OTA","author":"","date":"03-01-2026","format":false,"excerpt":"De Omegon Pro APO AP 85\/560 wordt geleverd met FPL-53 ED-tripletobjectief, hybride Crayford-focuser, 2\/1,25 inch adapter, aluminium transportkoffer, CNC-buisringen en uitschuifbare dauwkap: de premium 85 mm.","rel":"","context":"Similar post","block_context":{"text":"Similar 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