{"id":1292,"date":"2024-12-18T16:54:58","date_gmt":"2024-12-18T15:54:58","guid":{"rendered":"https:\/\/deep-space-astronomy.geekworkers.dev\/?post_type=product&#038;p=1292"},"modified":"2025-06-03T10:36:31","modified_gmt":"2025-06-03T08:36:31","slug":"aplanisseurs-de-champs-pour-la-140apo","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/aplanisseurs-de-champs-pour-la-140apo\/","title":{"rendered":"Field levelers for 140APO"},"content":{"rendered":"<h3>Flattener 1.0x for Askar 140APO<\/h3>\n<p>The 1.0x flattener is specially designed to optimize the performance of the Askar 140APO telescope. Preserving a focal ratio of f\/7 and a focal length of 980 mm, this flattener guarantees sharp, distortion-free images for high-quality observation and shooting. It effectively corrects field curvature and coma, enabling flatter field edges and sharper stars, for an optimized visual and photographic experience.<\/p>\n<h3>Key features<\/h3>\n<ul>\n<li><strong>Optical design :<\/strong> This flattener adopts a triplet optical design, offering a 44 mm full-format image field, ideal for large sensors and ensuring image homogeneity across the entire surface.<\/li>\n<li><strong>Weight and dimensions :<\/strong><\/li>\n<ul>\n<li><strong>Weight :<\/strong> 0.79 kg, a balance between sturdiness and manoeuvrability.<\/li>\n<li><strong>Diameter :<\/strong> 88 mm, guaranteeing perfect integration with Askar 140APO.<\/li>\n<li><strong>Total length :<\/strong> 111 mm, divided into several sections for optimized assembly.<\/li>\n<\/ul>\n<li><strong>Back Focus:<\/strong><\/li>\n<ul>\n<li>The rear focusing distance is standardized at 55 mm from the base of the M48 male thread, essential for precise optical adjustments, particularly for astrophotography configurations.<\/li>\n<\/ul>\n<li><strong>Compatibility and connections :<\/strong><\/li>\n<ul>\n<li><strong>Front thread :<\/strong> M68\u00d71, ensuring stable mounting on the telescope.<\/li>\n<li><strong>Rear thread :<\/strong> Several connection options, including M54\u00d70.75 and M48\u00d70.75, with a 2\" filter thread (M48\u00d70.75). These connection options allow great flexibility for various accessories, including cameras and filters.<\/li>\n<\/ul>\n<li><strong>Protection and finishing :<\/strong><\/li>\n<ul>\n<li>The flattener is CNC machined to a high-quality finish. It features threaded metal caps at both ends, protecting optical surfaces and threads when not in use, and keeping the flattener free from dust and scratches.<\/li>\n<\/ul>\n<\/ul>\n<h3>Additional accessories for Askar 140APO<\/h3>\n<p>In addition to the 1.0x flattener, the Askar 140APO is compatible with another premium accessory:<\/p>\n<ul>\n<li><strong>Reducer 0.8x :<\/strong> This reducer reduces the focal ratio to provide an enlarged field of view, ideal for observing large swathes of sky or capturing extended details in shots.<\/li>\n<\/ul>\n<h3>Technical Specifications<\/h3>\n<ul>\n<li><strong>Focal length :<\/strong> 980 mm<\/li>\n<li><strong>Focal report :<\/strong> f\/7<\/li>\n<li><strong>Optical design :<\/strong> Triplet<\/li>\n<li><strong>Image field :<\/strong> 44 mm (full format)<\/li>\n<li><strong>Back Focus:<\/strong> 55 mm (from base of M48 thread)<\/li>\n<li><strong>Weight :<\/strong> 0.79 kg<\/li>\n<li><strong>Diameter :<\/strong> 88 mm<\/li>\n<li><strong>Front thread :<\/strong> M68\u00d71<\/li>\n<li><strong>Rear thread :<\/strong> M54\u00d70.75 and M48\u00d70.75 (with integrated 2\" filter thread - M48\u00d70.75)<\/li>\n<li><strong>Protection :<\/strong> Threaded metal caps to protect optical surfaces and threads<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Flattener 1.0x pour Askar 140APO Le flattener 1.0x est sp\u00e9cialement con\u00e7u pour optimiser les performances du t\u00e9lescope Askar 140APO. En pr\u00e9servant un rapport focal de f\/7 et une longueur focale de 980 mm, ce flattener garantit des images nettes et sans distorsion pour des observations et des prises de vues de haute qualit\u00e9. Il corrige [&hellip;]<\/p>\n","protected":false},"featured_media":5266,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[382],"product_cat":[19,650,575],"product_tag":[],"class_list":{"0":"post-1292","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-askar","7":"product_cat-accessoires","8":"product_cat-rducteurs-correcteurs-ap","9":"product_cat-astrophotographie","11":"first","12":"on_supplier","13":"taxable","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/1292","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=1292"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/5266"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=1292"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=1292"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=1292"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=1292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}