{"id":1294,"date":"2024-12-18T16:56:50","date_gmt":"2024-12-18T15:56:50","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/?post_type=product&#038;p=1294"},"modified":"2025-06-03T10:36:31","modified_gmt":"2025-06-03T08:36:31","slug":"correcteur-de-coma-2-pour-newton-x0-95-f-3-a-f-6","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/correcteur-de-coma-2-pour-newton-x0-95-f-3-a-f-6\/","title":{"rendered":"2\u2033 coma corrector for Newton x0.95 (f\/3 to f\/6)"},"content":{"rendered":"<h3>Coma Corrector 2\" 0.95\u00d7 Sharpstar<\/h3>\n<p>The Sharpstar 2\" 0.95\u00d7 coma corrector is a high-quality accessory specially designed to improve the sharpness of images obtained with Newtonian reflector astrographs. It is ideal for users of Newtonian telescopes who wish to correct coma at the edges of the field and enjoy precise, uniform stellar imaging.<\/p>\n<h3>Compatibility with Newtonian telescopes<\/h3>\n<p>This corrector is compatible with a wide range of Newtonian telescopes with focal ratios between f\/3 and f\/6, and apertures from 150 mm to 600 mm. It is specially optimized for APS-C format (28 mm) image circles, making it an excellent choice for astrophotographers using sensors of this size.<\/p>\n<h3>Technical features and benefits<\/h3>\n<p>This model offers a reduction factor of 0.95\u00d7, enabling the initial focal ratio to be reduced (for example, an f\/4 becomes an f\/3.8). By reducing the focal ratio, it shortens the exposure time required and improves the shape of stars across the entire field of view, limiting the diameter of stars in the center of the field to less than 10 microns.<\/p>\n<ul>\n<li><strong>Application:<\/strong> Newtonian telescopes from 150 to 600 mm aperture, with f\/3 to f\/6 focal ratio<\/li>\n<li><strong>Reduction factor :<\/strong> 0.95\u00d7<\/li>\n<li><strong>Image circle :<\/strong> 44 mm (maximum), 28 mm (optimal for APS-C)<\/li>\n<li><strong>Lens design :<\/strong> Triplet structure for effective correction<\/li>\n<li><strong>Outside diameter :<\/strong> 50.8 mm (2 inches), compatible with standard 2-inch eyepiece holders<\/li>\n<li><strong>Back-focus :<\/strong> 56 mm (measured from field ring to focal plane)<\/li>\n<li><strong>Total length :<\/strong> 79.7 mm<\/li>\n<li><strong>Coating :<\/strong> Multi-layer for optimum light transmission<\/li>\n<li><strong>Weight :<\/strong> 0.22 kg<\/li>\n<\/ul>\n<h3>Why choose the Sharpstar 2\" 0.95\u00d7 Coma Corrector?<\/h3>\n<p>This corrector is an ideal choice for astronomers with Newtonian reflectors who want to perfect their images. Its design allows easy installation in most 2\" eyepiece holders, and the 56mm back-focus is compatible with many imaging accessories on the market. With its triplet design and multi-layer coatings, it guarantees clear images, without glare or loss of contrast.<\/p>\n<p>In short, Sharpstar's 2\" 0.95\u00d7 coma corrector is an essential accessory for all astrophotographers looking to optimize the quality of their images with Newtonian telescopes, by improving star sharpness and reducing the exposure time required.<\/p>","protected":false},"excerpt":{"rendered":"<p>Correcteur de Coma 2\u201d 0.95\u00d7 Sharpstar Le correcteur de coma Sharpstar 2\u201d 0.95\u00d7 est un accessoire de haute qualit\u00e9 sp\u00e9cialement con\u00e7u pour am\u00e9liorer la nettet\u00e9 des images obtenues avec des astrographes r\u00e9flecteurs newtoniens. Il est id\u00e9al pour les utilisateurs de t\u00e9lescopes newtoniens qui souhaitent corriger la coma sur les bords du champ et profiter d\u2019une [&hellip;]<\/p>\n","protected":false},"featured_media":5268,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[386],"product_cat":[19,650,575],"product_tag":[],"class_list":["post-1294","product","type-product","status-publish","has-post-thumbnail","product_brand-sharpstar","product_cat-accessoires","product_cat-rducteurs-correcteurs-ap","product_cat-astrophotographie","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/1294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=1294"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/5268"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=1294"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=1294"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=1294"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=1294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}