{"id":34161,"date":"2025-11-17T13:31:27","date_gmt":"2025-11-17T12:31:27","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&p=34161"},"modified":"2026-03-20T11:56:39","modified_gmt":"2026-03-20T10:56:39","slug":"william-optics-400mm-losmandy-swan-series-3","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/william-optics-400mm-losmandy-swan-series-3\/","title":{"rendered":"William Optics 400mm Losmandy Swan Series"},"content":{"rendered":"

William Optics 400mm - Strong, stable base for your telescope<\/strong><\/h3>\n\n\n\n

The William Optics 400mm<\/strong> gives you a sturdy, reliable rail on which to safely secure your telescope or accessories. You slide it into the clamp, tighten it, and everything remains stable. This ensures a calm image even when you're focusing or adjusting your setup.<\/p>\n\n\n\n

\n
\"William<\/figure>\n<\/figure>\n\n\n\n

Wide Losmandy rail for heavier equipment<\/strong><\/h3>\n\n\n\n

The 400mm Losmandy rail is wider than a standard Vixen rail. As a result, it carries heavier telescopes without bending. You immediately notice that your entire setup feels more stable. Your image stays quieter, and you can work more accurately more easily.<\/p>\n\n\n\n

More space for accessories<\/strong><\/h3>\n\n\n\n

You don't just use the rail for your telescope. It offers enough space to add additional tools, such as a tracking scope or a camera. So you build your ideal astrophoto setup, completely to your style. Everything stays firmly in place.<\/p>\n\n\n\n

\n
\"William<\/figure>\n<\/figure>\n\n\n\n

Made for everyday use<\/strong><\/h3>\n\n\n\n

The rail is made of aluminum. Light, strong and dimensionally stable. You pick it up easily and it can take a beating. The gray finish gives it a neat, professional look and makes it easily visible among your other equipment.<\/p>\n\n\n\n

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

General<\/strong><\/h4>\n\n\n\n
Feature<\/th>Description<\/th><\/tr><\/thead>
Type<\/td>Dovetail<\/td><\/tr>
Design<\/td>Losmandy<\/td><\/tr>
Length (mm)<\/td>400<\/td><\/tr>
Weight (g)<\/td>1400<\/td><\/tr>
Material<\/td>Aluminum<\/td><\/tr>
Color<\/td>gray<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"

William Optics 400mm comes with a gray 400mm Losmandy swallowtail plate in high-grade aluminum - suitable for heavy optics and attachment of accessories. \u00a0<\/p>","protected":false},"featured_media":97554,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[643],"product_cat":[56,3065,590,538],"product_tag":[],"class_list":["post-34161","product","type-product","status-publish","has-post-thumbnail","product_brand-william-optics","product_cat-telescoop-accessoires","product_cat-dovetails","product_cat-montering-accessoires","product_cat-monteringen","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":[],"acf":[],"jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":107604,"url":"https:\/\/www.telescoop.nl\/en\/televue-tele-pod-advanced-azimutale-montering\/","url_meta":{"origin":34161,"position":0},"title":"TeleVue Tele-Pod Advanced \u2013 Azimuth Mount","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"TeleVue Tele-Pod Advanced \u2013 azimutale montering wordt geleverd met aluminium statief, transporttas en biedt soepele bediening voor lichte telescopen. \u00a0","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Montering Tele-Pod Advanced close-up van de azimutale montagekop op zwart geanodiseerd aluminium statief met blauwe accentring op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Montering-Tele-Pod-Advanced-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":104875,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-labzz-t3\/","url_meta":{"origin":34161,"position":1},"title":"Levenhuk LabZZ T3 - 60\/700 Refractor","author":"Abdullah Ibrar","date":"24-03-2026","format":false,"excerpt":"Levenhuk LabZZ T3 - 60\/700 Refractor comes with 4mm eyepiece, 12.5mm eyepiece, 1.5x eyepiece, 3x Barlow lens, 5x optical viewfinder, zenith mirror and aluminum tripod with accessory tray.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Levenhuk LabZZ T3 - 60\/700 Refractor aluminium statief met accessoirebak","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Levenhuk-LabZZ-T3-60700-Refractor-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":107590,"url":"https:\/\/www.telescoop.nl\/en\/televue-oculairtas-transporttas\/","url_meta":{"origin":34161,"position":2},"title":"TeleVue Oculairtas \u2013 Carrying Case","author":"Abdullah Ibrar","date":"28-04-2026","format":false,"excerpt":"TeleVue Oculairtas \u2013 transporttas wordt geleverd met stevige foamvoering en biedt ruimte aan maximaal 13 oculairs en accessoires.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Transporttas Oculairtas gesloten grijze nylon oculairtas met handgrepen, ritssluiting en schouderriem op witte achtergrond","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Transporttas-Oculairtas-5.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":105495,"url":"https:\/\/www.telescoop.nl\/en\/levenhuk-new-skyline-pro-16\/","url_meta":{"origin":34161,"position":3},"title":"Levenhuk New Skyline PRO 16\u2033 \u2013 406\/1830 Dobson","author":"Abdullah Ibrar","date":"03-04-2026","format":false,"excerpt":"The Levenhuk New Skyline PRO 16\" \u2013 406\/1830 Dobson comes with 10 mm and 25 mm Pl\u00f6ssl eyepieces, an 8x40 optical finderscope, and a primary mirror cooling system. 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