{"id":2964,"date":"2025-03-06T16:42:31","date_gmt":"2025-03-06T15:42:31","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/produit\/203apo\/"},"modified":"2025-07-07T17:45:22","modified_gmt":"2025-07-07T15:45:22","slug":"203apo","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/203apo\/","title":{"rendered":"Askar 203 APO apochromatic telescope"},"content":{"rendered":"<h3>Introducing the Askar 203APO bezel<\/h3>\n<p>Discover the Askar 203APO refractor, an exceptional instrument for demanding astronomers. Equipped with a 203 mm APO triplet objective with low-dispersion ED glass, it effectively corrects chromatic aberrations to deliver images of remarkable clarity. With a focal length of 1421 mm and a native focal ratio of f\/7, it guarantees images rich in detail and contrast, ideal for capturing celestial objects with unrivalled precision.<\/p>\n<h3>Optics and Performance<\/h3>\n<ul>\n<li><strong>Opening :<\/strong> 203 mm (8 inches)<\/li>\n<li><strong>Focal length :<\/strong> 1421 mm (f\/7)<\/li>\n<li><strong>Objective:<\/strong> Triplet APO with ED glass to reduce chromatic aberration<\/li>\n<li><strong>Optical advantage :<\/strong> Captures 20 % more light than model 185APO, with a limiting magnitude of 13.3<\/li>\n<\/ul>\n<h3>Design and Engineering<\/h3>\n<ul>\n<li><strong>Optical tube :<\/strong> Machined with an elegant finish, combining orange accents on an ivory background<\/li>\n<li><strong>Retractable design :<\/strong> Reduces overall length to 1145 mm for easy transport, with rudder-type locking ring for simple, secure adjustment<\/li>\n<li><strong>Eyepiece holder :<\/strong> Large, rigid 3.5-inch double-speed rack-and-pinion eyepiece holder with 360\u00b0 rotator and oversized locking screws<\/li>\n<li><strong>Focusing scale :<\/strong> High-precision engraving over a range of 100 mm, combined with anti-reflective internal design and matt paint to eliminate stray light<\/li>\n<\/ul>\n<h3>Accessories and Connectivity<\/h3>\n<ul>\n<li>Two finder bases, one on each side of the eyepiece holder, for attaching various accessories without disassembly<\/li>\n<li>Interface supplied with 1.25\"\/2\" adapter for eyepieces and diagonals, compatible with binoviewers<\/li>\n<li>Mounted on a standard 500 mm Losmandy dovetail, with multiple holes for easy adjustment to the equatorial mount<\/li>\n<\/ul>\n<h3>Technical specifications<\/h3>\n<ul>\n<li><strong>Opening :<\/strong> 203 mm<\/li>\n<li><strong>Focal length :<\/strong> 1421 mm (f\/7)<\/li>\n<li><strong>Eyepiece holder :<\/strong> 3.5-inch double speed with 360\u00b0 rotator<\/li>\n<li><strong>Retractable design :<\/strong> Total length 1145 mm<\/li>\n<li><strong>Weight :<\/strong> Net weight: 14.9 kg; total weight (including tube, collar and dovetail): 23.5 kg<\/li>\n<li><strong>Optical advantage :<\/strong> 20 % more light than model 185APO, limiting magnitude 13.3<\/li>\n<li><strong>Connectivity :<\/strong> 1.25\"\/2\" adapter for eyepieces and diagonals<\/li>\n<\/ul>\n<h3>Accessories Included<\/h3>\n<ul>\n<li>Unique name ring for easy identification<\/li>\n<li>Retractable spray shield locked by large screws<\/li>\n<li>Reinforced triplet tube clamp with knurled screws for quick opening and locking<\/li>\n<li>402 mm handle with special groove, can accommodate a researcher for additional observations<\/li>\n<li>500 mm Losmandy dovetail<\/li>\n<\/ul>\n<h3>Conclusion<\/h3>\n<p>The Askar 203APO is the ultimate choice for demanding astrophotographers and observers. Thanks to its large aperture, high-precision optical design and comprehensive accessories, it offers outstanding image quality and a smooth, stable observing experience. With optimized performance and ingenious design, it's ready to accompany you on your detailed exploration of the night sky.<\/p>","protected":false},"excerpt":{"rendered":"<p>Pr\u00e9sentation de la lunette Askar 203APO D\u00e9couvrez la lunette Askar 203APO, un instrument d\u2019exception pour les astronomes exigeants. \u00c9quip\u00e9e d\u2019un objectif APO triplet de 203 mm avec un verre ED \u00e0 faible dispersion, elle corrige efficacement les aberrations chromatiques pour offrir des images d\u2019une clart\u00e9 remarquable. Avec une focale de 1421 mm et un rapport [&hellip;]<\/p>\n","protected":false},"featured_media":2963,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[382],"product_cat":[384,755],"product_tag":[],"class_list":{"0":"post-2964","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-askar","7":"product_cat-lunettes_refracteurs","8":"product_cat-lunettes-apochromatiques","10":"first","11":"on_supplier","12":"taxable","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/2964","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=2964"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/2963"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=2964"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=2964"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=2964"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=2964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}