{"id":90974,"date":"2025-12-03T13:35:43","date_gmt":"2025-12-03T12:35:43","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=90974"},"modified":"2026-10-26T18:00:40","modified_gmt":"2026-10-26T17:00:40","slug":"sky-watcher-1-25-inch-zenith-mirror-90-degrees","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/sky-watcher-1-25-inch-zenitspiegel-90-graden\/","title":{"rendered":"Sky-Watcher 1.25 inch Erecting Prism (90 degrees)"},"content":{"rendered":"<h2 class=\"wp-block-heading has-text-align-center\"><strong>Sky-Watcher 1.25-inch star diagonal: comfortable viewing without breaking your neck<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When using a refractor or Maksutov pointed upward, the eyepiece is inconveniently low without an accessory. This 90-degree star diagonal deflects the light path, allowing you to comfortably look into the eyepiece from above, even for objects high in the sky. The fully coated mirror keeps the image bright.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.telescoop.nl\/wp-content\/uploads\/2025\/12\/Skywatcher-Zenitspiegel-90\u00b0-125.jpg\" alt=\"Skywatcher Zenith mirror 90\u00b0 1.25-inch diagonal mirror in black-silver housing side view with eyepiece holder and insertion mount.\" title=\"\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Good to know: a star diagonal shows the image upright but mirrored (left and right reversed). For the starry sky, that doesn't matter; if you want to view landscapes or nature during the day, choose an erecting prism that fully corrects the image.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Features<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n\n<li>90-degree viewing angle for a relaxed posture<\/li>\n\n\n<li>Fully coated mirror<\/li>\n\n\n<li>1.25-inch focuser, black and silver finish<\/li>\n\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Compatibility<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Suitable for refractors and Maksutovs with a 1.25-inch focuser connection. Also the correct replacement for a simple included star diagonal.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Type<\/strong><\/td><td>Zenith mirror<\/td><\/tr><tr><td><strong>Viewing angle<\/strong><\/td><td>90 degrees<\/td><\/tr><tr><td><strong>Coating<\/strong><\/td><td>Fully coated<\/td><\/tr><tr><td><strong>Mount<\/strong><\/td><td>1.25 inches<\/td><\/tr><tr><td><strong>Image<\/strong><\/td><td>Upright, in mirror image<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The disassembly of <a href=\"https:\/\/www.telescoop.nl\/en\/brands\/sky-watcher\/\">Sky-Watcher<\/a> is a base that will last you for years. Unsure which mount is best for your telescope and your goals? Contact us, we'd be happy to help you decide.<\/p>","protected":false},"excerpt":{"rendered":"<p>Classic 90-degree star diagonal in 1.25 inch: comfortable viewing position for refractors and Maksutovs, with fully coated mirror for a bright image.<\/p>","protected":false},"featured_media":98238,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[542],"product_cat":[56,591,3142],"product_tag":[],"class_list":["post-90974","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-telescoop-accessoires","product_cat-diagonalen","product_cat-zenitspiegels-en-zenitprisma-diagonals","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"bundled_by":[],"bundle_stock_status":"onbackorder","bundle_stock_quantity":0,"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":107655,"url":"https:\/\/www.telescoop.nl\/en\/televue-everbrite-60-125-zenitspiegel\/","url_meta":{"origin":90974,"position":0},"title":"TeleVue Everbrite 60\u00b0 1.25\u2033 \u2013 Diagonal Mirror","author":"Abdullah Ibrar","date":"29-04-2026","format":false,"excerpt":"Everbrite 60-degree 1.25-inch mirror for natural observation with a refractor.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Everbrite zenitspiegel, 60\u00b0, 1,25\" 60 graden Everbrite dielectric spiegel-diagonaal met rechtopstaand beeld en 1,25 inch telescoopaansluiting in zwarte aluminium behuizing","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Everbrite-zenitspiegel-60d-1-25-.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Everbrite-zenitspiegel-60d-1-25-.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Everbrite-zenitspiegel-60d-1-25-.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Everbrite-zenitspiegel-60d-1-25-.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":107666,"url":"https:\/\/www.telescoop.nl\/en\/televue-everbrite-90-2-zenitspiegel\/","url_meta":{"origin":90974,"position":1},"title":"TeleVue Everbrite 90\u00b0 2\u2033 - Diagonal Mirror","author":"Abdullah Ibrar","date":"29-04-2026","format":false,"excerpt":"Everbrite dielectric zenith mirror 90 degrees 2 inch for large eyepieces.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"TeleVue Zenitspiegel Everbrite 90\u00b0 2\" 90 graden Everbrite dielectric zenitspiegel met 2 inch telescoop- en oculairaansluiting, klemring en zwarte aluminium behuizing","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Zenitspiegel-Everbrite-90d-2-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Zenitspiegel-Everbrite-90d-2-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Zenitspiegel-Everbrite-90d-2-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/04\/TeleVue-Zenitspiegel-Everbrite-90d-2-1.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":90978,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-2-inch-zenitspiegel-90-graden\/","url_meta":{"origin":90974,"position":2},"title":"Sky-Watcher 2-inch Zenith Mirror (90 degrees)","author":"","date":"03-12-2025","format":false,"excerpt":"2-inch star diagonal with included 1.25-inch adapter: comfortable 90-degree viewing angle for large wide-field eyepieces and standard eyepieces on the same diagonal.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":90972,"url":"https:\/\/www.telescoop.nl\/en\/sky-watcher-1-25-inch-omkeerprisma-90-graden\/","url_meta":{"origin":90974,"position":3},"title":"Sky-Watcher 1.25-inch 90-Degree Erecting Prism (Amici Prism)","author":"","date":"03-12-2025","format":false,"excerpt":"90-degree Amici erecting prism with 1.25-inch barrel: fully corrected image for astronomical and terrestrial use, at a comfortable angle for stargazing.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":32522,"url":"https:\/\/www.telescoop.nl\/en\/bresser-90-graden-2-inch-zenitspiegel\/","url_meta":{"origin":90974,"position":4},"title":"Bresser 90\u00b0 2 inch Zenith Mirror","author":"","date":"03-11-2025","format":false,"excerpt":"Bresser 90-degree zenith mirror, 2 inches, with dielectric coating (93% reflectivity), brass clamping ring, and adapter for 1.25-inch eyepieces. 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