{"id":2863,"date":"2025-03-06T15:55:43","date_gmt":"2025-03-06T14:55:43","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/produit\/vixen-vc200l-2-visac-cassegrain-aspherique-de-sixieme-ordre\/"},"modified":"2025-06-03T10:38:32","modified_gmt":"2025-06-03T08:38:32","slug":"vixen-vc200l-2-visac-cassegrain-aspherique-de-sixieme-ordre","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/vixen-vc200l-2-visac-cassegrain-aspherique-de-sixieme-ordre\/","title":{"rendered":"Vixen VC200L 2 \"VISAC\" (Sixth-order aspherical breakgrain)"},"content":{"rendered":"<h3>The Vixen VC200L: Catadioptric Telescope Optimized for Astrophotography<\/h3>\n<p>The Vixen VC200L is a catadioptric telescope optimized for astrophotography, thanks to its unique \"VISAC\" (Vixen's Sixth-Order Aspherical Cassegrain) design. This advanced optical system offers a flat, corrected field of view, ideal for capturing sharp, detailed images with modern sensors.<\/p>\n<h3>Optical characteristics<\/h3>\n<ul>\n<li><strong>Opening :<\/strong> 200 mm (8 inches), offering excellent light-gathering capacity.<\/li>\n<li><strong>Focal length :<\/strong> 1800 mm, with a focal ratio of f\/9.<\/li>\n<li><strong>Corrected field :<\/strong> Fully illuminated 42 mm image circle, suitable for full-format sensors.<\/li>\n<li><strong>Theoretical resolution :<\/strong> 0.58 arcsec.<\/li>\n<li><strong>Magnitude limit :<\/strong> 13,3.<\/li>\n<\/ul>\n<h3>Mechanical design<\/h3>\n<ul>\n<li><strong>Open tube :<\/strong> Allows rapid cooling, reducing internal turbulence.<\/li>\n<li><strong>Length and weight :<\/strong> Compact 600 mm tube weighing 6.9 kg (6 kg without accessories), for easy transport and compatibility with medium equatorial mounts.<\/li>\n<li><strong>Camera connection :<\/strong> Standard 2\" eyepiece holder with M60x1 thread for extended compatibility.<\/li>\n<\/ul>\n<h3>Astrophotography performance<\/h3>\n<ul>\n<li>Suitable for astrophotography thanks to its flat, corrected field of view.<\/li>\n<li>Excels at capturing deep-sky objects such as galaxies, nebulae and star clusters.<\/li>\n<li>With an optional focal length reducer (0.62x), it can achieve a faster focal ratio of f\/5.6, ideal for reducing exposure times.<\/li>\n<li>Stars remain punctual over the entire field of view up to 42 mm in diameter, even with full-format sensors.<\/li>\n<li>Performance comparable to that of Ritchey-Chr\u00e9tien systems, with simpler collimation.<\/li>\n<\/ul>\n<h3>Key benefits<\/h3>\n<ul>\n<li>Flat, corrected field: No external flattener required thanks to the integrated corrective lens.<\/li>\n<li>Fast cooling: The open tube ensures rapid warm-up, ideal for impromptu observation or imaging sessions.<\/li>\n<li>Versatility: Optimized for astrophotography while offering good visual observation performance.<\/li>\n<li>Easy collimation: simpler than a Ritchey-Chr\u00e9tien, yet offering similar performance.<\/li>\n<\/ul>\n<h3>Main applications<\/h3>\n<ul>\n<li>Wide-field astrophotography: Precise capture of extended deep-sky objects.<\/li>\n<li>Visual observation: Excellent performance in planetary and lunar observation.<\/li>\n<li>Scientific research: Ideal for applications requiring advanced optical correction.<\/li>\n<\/ul>\n<h3>Accessories included<\/h3>\n<ul>\n<li>Vixen-type dovetail for mounting on equatorial mount.<\/li>\n<li>Illuminated, reticulated 7\u00d750 optical finder.<\/li>\n<li>Flip-mirror Vixen for easy use with eyepieces or cameras.<\/li>\n<\/ul>\n<h3>In a nutshell<\/h3>\n<p>The Vixen VC200L is a telescope specially designed to meet the needs of demanding astrophotographers. Its unique VISAC system guarantees sharp, corrected images across the entire field, while its lightweight, compact design makes it a practical, high-performance choice for exploring the wonders of the deep sky.<\/p>","protected":false},"excerpt":{"rendered":"<p>Le Vixen VC200L : T\u00e9lescope Catadioptrique Optimis\u00e9 pour l\u2019Astrophotographie Le Vixen VC200L est un t\u00e9lescope catadioptrique optimis\u00e9 pour l\u2019astrophotographie, gr\u00e2ce \u00e0 sa conception unique \u201cVISAC\u201d (Vixen\u2019s Sixth-Order Aspherical Cassegrain). Ce syst\u00e8me optique avanc\u00e9 offre un champ plan et corrig\u00e9, id\u00e9al pour capturer des images nettes et d\u00e9taill\u00e9es avec des capteurs modernes. Caract\u00e9ristiques optiques Ouverture : [&hellip;]<\/p>\n","protected":false},"featured_media":6345,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[451],"product_cat":[751,392],"product_tag":[],"class_list":["post-2863","product","type-product","status-publish","has-post-thumbnail","product_brand-vixen","product_cat-cassegrain","product_cat-telescopes_reflecteurs","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/2863","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=2863"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/6345"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=2863"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=2863"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=2863"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=2863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}