{"id":92224,"date":"2026-01-03T19:11:54","date_gmt":"2026-01-03T18:11:54","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=92224"},"modified":"2026-03-03T20:24:55","modified_gmt":"2026-03-03T19:24:55","slug":"omegon-pro-rc-406-3250-truss-ota","status":"publish","type":"product","link":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-rc-406-3250-truss-ota\/","title":{"rendered":"Omegon Pro RC 406\/3250 Truss OTA - 406mm Ritchey-Chr\u00e9tien"},"content":{"rendered":"

Omegon Pro RC 406\/3250 Telescope - Professional astrophotography at your fingertips<\/strong>
The Omegon Pro RC 406\/3250 is a Ritchey-Chr\u00e9tien telescope designed for advanced astrophotographers and observatories. It delivers a razor-sharp image over a wide field of view, with no distortion or coma. Stars and nebulae remain spot-on all the way to the edge of your image.<\/p>\n\n\n\n

Hyperbolic mirrors for maximum sharpness<\/strong>
The quartz main and catch mirrors keep the focus stable even with temperature changes. Adjustment is hardly necessary. Thanks to 92-94%'s reflective coating, you'll see bright, high-contrast images.<\/p>\n\n\n\n

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

Lots of light and large field of view<\/strong>
With a 406 mm main mirror, you catch a lot of light. This allows you to see deep nebulae, galaxies and clusters bright and clear. The RC design delivers sharpness all the way to the edge, without a corrector.<\/p>\n\n\n\n

Fast cooling, minimal turbulence<\/strong>
The open carbon gitter tube allows air to flow freely. This avoids creating hot layers of air that blur your image. The built-in fan cools the main mirror up to 50% faster, so you can start shooting faster.<\/p>\n\n\n\n

Strong, accurate focuser<\/strong>
The 3\u2033 Crayford focuser with ball bearings accommodates large CCD cameras. It is fully rotatable, accurately adjustable with 1:10 reduction and remains stable. No tilting, no vignetting, just razor sharp images.<\/p>\n\n\n\n

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

Better performance than SC telescopes<\/strong>
Without a corrector plate, there is no internal reflection. The telescope adjusts more quickly to the ambient temperature. RC telescopes are the best corrected two-mirror telescopes. The image remains razor sharp both in the center and at the periphery.<\/p>\n\n\n\n

Ideal for advanced hobby astronomers<\/strong>
RC telescopes used to be available only to institutions. Now you can achieve the same results as an advanced amateur with this technology: large CCD cameras, long exposures and bright, high-contrast images.<\/p>\n\n\n\n

What we recommend<\/strong>
\u2713 Nebulae & galaxies: excellent
\u2713 Astrophotography: top quality
\u2717 Moon & Planets: not ideal
\u2717 Nature observation: not suitable
\u2717 Sun: only with special sun filters<\/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>Ritchey-Chr\u00e9tien<\/td><\/tr>
Aperture (mm)<\/td>406<\/td><\/tr>
Focal length (mm)<\/td>3250<\/td><\/tr>
Aperture ratio (f\/)<\/td>8<\/td><\/tr>
Resolution<\/td>0,28\u2033<\/td><\/tr>
Limit value (mag)<\/td>15,5<\/td><\/tr>
Light output<\/td>3364\u00d7<\/td><\/tr>
Max. useful magnification<\/td>800\u00d7<\/td><\/tr>
Tube weight (kg)<\/td>38<\/td><\/tr>
Tube length (mm)<\/td>1120<\/td><\/tr>
Tube material<\/td>Carbon<\/td><\/tr>
Tube diameter (mm)<\/td>535<\/td><\/tr>
Tube construction<\/td>Open 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>Hyperbolic<\/td><\/tr>
Front mirror material<\/td>Quartz<\/td><\/tr>
Main mirror material<\/td>Quartz<\/td><\/tr>
Capture mirror diameter (mm)<\/td>190<\/td><\/tr>
Catch mirror obstruction<\/td>47%<\/td><\/tr>
Reflectivity<\/td>94%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Design<\/td>Monorail 3\u2033<\/td><\/tr>
Ocular connection<\/td>3\u2033<\/td><\/tr>
Reduction<\/td>1:10 finesse<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

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

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

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

Feature<\/th>Description<\/th><\/tr><\/thead>
Dovetail<\/td>Losmandy-Style<\/td><\/tr>
Extensions<\/td>Yes<\/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 RC<\/td><\/tr>
Application<\/td>Nebulae & galaxies<\/td><\/tr>
Astrophotography<\/td>Yes<\/td><\/tr>
Recommended for<\/td>Advanced<\/td><\/tr>
Observatories<\/td>Yes<\/td><\/tr>
Moon & Planets<\/td>No<\/td><\/tr>
Nature observation<\/td>No<\/td><\/tr>
Sun<\/td>Not recommended (only with appropriate sunscreens)<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

Omegon Pro RC 406\/3250 Telescope<\/span>\u00a0Comes with open carbon truss tube, quartz honeycomb main mirror, 3\u2033 monorail focuser, powerful fan, extensions and Losmandy swallowtail - ideal for advanced astrophotographers and observatories in need of extreme image sharpness and high light output.<\/span><\/p>","protected":false},"featured_media":98693,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[51,531],"product_tag":[],"class_list":["post-92224","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescopen","product_cat-gevorderd","product_shipping_class-telescoop","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":92214,"url":"https:\/\/staging.telescoop.nl\/en\/omegon-pro-newton-406-3250-lichtgewicht-truss-ota\/","url_meta":{"origin":92224,"position":0},"title":"Omegon 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