{"id":25260,"date":"2025-08-07T17:28:27","date_gmt":"2025-08-07T15:28:27","guid":{"rendered":"https:\/\/www.telescoop.nl\/?post_type=product&#038;p=25260"},"modified":"2026-10-16T15:36:34","modified_gmt":"2026-10-16T13:36:34","slug":"omegon-solar-filter-90-mm","status":"publish","type":"product","link":"https:\/\/www.telescoop.nl\/en\/omegon-zonnefilter-90-mm\/","title":{"rendered":"Omegon Solar Filter 90 mm"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Omegon Solar Filter 90 mm<\/strong> is specially designed for telescopes with a tube diameter around 90 mm - such as many common lens telescopes (refractors) or compact Maksutov systems. Thanks to the use of certified AstroSolar film, you observe the sun without risk and with stunning clarity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The filter shows the solar surface in a neutral white image, highlighting sunspots, granulation and edge structures. The sturdy mounting via screw clamps and adjusting rings makes the filter easy to install as well as safe to use. This makes it suitable not only for individual observation, but also for use in public demonstrations and schools.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Safety first: this filter meets the international ISO 12312-2 standard for direct sun observation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Advantages<\/strong><br>\u2713 Fits telescopes with approximately 90 mm tube diameter<br>\u2713 Enables safe sun viewing with natural color reproduction<br>\u2713 Firm attachment prevents shifting<br>\u2713 Perfect for sunspots, edge structure and eclipses<br>\u2713 Certified and reusable<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Specifications<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Type:<\/strong> Solar filter for visual use<\/li>\n\n\n\n<li><strong>Suitable pipe diameter:<\/strong> \u00b190 mm<\/li>\n\n\n\n<li><strong>Filter material:<\/strong> AstroSolar Safety Film (ND 5.0)<\/li>\n\n\n\n<li><strong>Color rendering:<\/strong> Neutral white<\/li>\n\n\n\n<li><strong>Safety standard:<\/strong> ISO 12312-2 certified<\/li>\n\n\n\n<li><strong>Attachment:<\/strong> With adjusting rings and screw clamps<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Observation goals<\/strong><br>The Omegon Solar Filter 90 mm is ideal for anyone who wants to safely observe the sun with a standard refractor or compact telescope. From sunspots to eclipses, this filter is ready for any solar project.<\/p>","protected":false},"excerpt":{"rendered":"<p data-start=\"2490\" data-end=\"2830\">\u00a0<\/p>\n<p data-start=\"2344\" data-end=\"2488\">Omegon Solar Filter 90 mm - safe and high-contrast sun observation for telescopes with a tube diameter of about 90 mm.<\/p>","protected":false},"featured_media":25094,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[126],"product_cat":[56,3178],"product_tag":[],"class_list":["post-25260","product","type-product","status-publish","has-post-thumbnail","product_brand-omegon","product_cat-telescoop-accessoires","product_cat-zonnefilters","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":108160,"url":"https:\/\/www.telescoop.nl\/en\/omegon-zonnefilters-helievo\/","url_meta":{"origin":25260,"position":0},"title":"Omegon Solar Filters Multiple Sizes","author":"Info telescoop","date":"17-05-2026","format":false,"excerpt":"Zonnefilter voor v\u00f3\u00f3r op de buis, tien maten van 44 tot 208 mm buitendiameter: ND 5.0 folie (1\/100.000 van het zonlicht) in een aluminium vatting met drie stelschroeven. Past op: elke buis, dauwkap of zoeker waarvan de buitendiameter in een van de tien maten valt; meet de omtrek en deel\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Zonnefilters meerdere maten","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/05\/Omegon-Zonnefilters-Helievo-192-184-208mm-1.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":25251,"url":"https:\/\/www.telescoop.nl\/en\/omegon-zonnefilter-138-153-mm\/","url_meta":{"origin":25260,"position":1},"title":"Omegon Solar Filter 138-153 mm","author":"Info telescoop","date":"07-08-2025","format":false,"excerpt":"\u00a0 Omegon Solar Filter 138-153 mm - safe sun observation with Newton telescopes from 138 to 153 mm aperture.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Zonnefilter 138-153 mm","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-138mm-153mm.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":25254,"url":"https:\/\/www.telescoop.nl\/en\/omegon-zonnefilter-173-193-mm\/","url_meta":{"origin":25260,"position":2},"title":"Omegon Solar Filter 173-193 mm","author":"Info telescoop","date":"07-08-2025","format":false,"excerpt":"\u00a0 Omegon Solar Filter 173-193 mm - safe solar observation with Newton telescopes of 173 to 193 mm outer diameter.","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon Zonnefilter 173-193 mm","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/08\/Omegon-Zonnefilters-zonnefilter-173mm-193mm.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":7704,"url":"https:\/\/www.telescoop.nl\/en\/omegon-ac-70-400-solar-backpack-az\/","url_meta":{"origin":25260,"position":3},"title":"Omegon AC 70\/400 Solar BackPack AZ","author":"Info telescoop","date":"12-02-2025","format":false,"excerpt":"Lenzentelescoop met een achromatische lens van 70 mm en 400 mm brandpunt (f\/5,7) op een aluminium fotostatief, met een witlicht-zonnefilter voor op de dauwkap en een rugzak. Op de zon: zonnevlekken met donkere kern en grijze rand, bij 20x de hele zon in beeld. 's Avonds zonder filter de maan\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"Omegon AC 70\/400 Solar BackPack AZ Teleskop","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Omegon-Telescoop-AC-70-400-Solar-BackPack-AZ.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":104660,"url":"https:\/\/www.telescoop.nl\/en\/acuter-solarus-80-zonnetelescoop-ota\/","url_meta":{"origin":25260,"position":4},"title":"Acuter Solarus-80 Solar Telescope OTA","author":"Info telescoop","date":"17-03-2026","format":false,"excerpt":"This is just the tube (OTA), without the mounting and tripod. You can choose the appropriate mounting and the accessories that come with it below. White light solar telescope with an 80 mm aperture, a 400 mm focal brandpoint and a fixed mounted glass solar filter (ISO 12312-2:2015). Complete with zoom eyepiece 25x\/40x\/80x, filter wheel with six color filters, solar viewfinder and smartphone adapter.\u2026","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\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2026\/03\/Acuter-Solarus-80-zonnetelescoop-OTA-%E2%80%93-80mm-specialist-voor-veilig-zonne-onderzoek.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":12398,"url":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-900-refractor-nano-az\/","url_meta":{"origin":25260,"position":5},"title":"Bresser Messier 90\/900 Refractor Nano AZ","author":"Info telescoop","date":"27-02-2025","format":false,"excerpt":"Refractor (lenzentelescoop) met een achromatische lens van 90 mm en 900 mm brandpunt (f\/10) op een alt-azimutale Nano-montering met roestvrijstalen statief. Geschikt voor: maan, Jupiter en Saturnus, dubbelsterren en sterrenhopen, ook vanuit de stad; met het meegeleverde zonnefilter ook zonnevlekken. Nevels en stelsels blijven bij 90 mm grijze vlekken.In de\u2026","rel":"","context":"With 1 comment","block_context":{"text":"With 1 comment","link":"https:\/\/www.telescoop.nl\/en\/bresser-messier-90-900-refractor-nano-az\/#comments"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.telescoop.nl\/wp-content\/uploads\/2025\/02\/Bresser-Telescoop-AC-90-900-Messier-Nano-AZ.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product\/25260","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=25260"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media\/25094"}],"wp:attachment":[{"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/media?parent=25260"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_brand?post=25260"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_cat?post=25260"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.telescoop.nl\/en\/wp-json\/wp\/v2\/product_tag?post=25260"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}