{"id":18399,"date":"2026-09-29T14:03:49","date_gmt":"2026-09-29T12:03:49","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=18399"},"modified":"2026-09-29T14:13:25","modified_gmt":"2026-09-29T12:13:25","slug":"takahashi-tka36580l","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka36580l\/","title":{"rendered":"Takahashi 645-QE &#8211; r\u00e9ducteur 0,72\u00d7 pour FSQ-106ED\/EDX4"},"content":{"rendered":"<h3>Usage<\/h3>\n<p>Le r\u00e9ducteur Takahashi 645-QE 0,72\u00d7 permet d\u2019\u00e9largir le champ photographique de la FSQ-106EDX4 avec un cercle image corrig\u00e9 de 60 mm. La lunette passe \u00e0 une focale de 380 mm et \u00e0 un rapport F\/D de 3,6 : une configuration adapt\u00e9e aux objets \u00e9tendus et aux grands capteurs. Ses quatre lentilles en quatre groupes b\u00e9n\u00e9ficient d\u2019un traitement multicouche \u00e0 large spectre. Le fabricant annonce une illumination sup\u00e9rieure \u00e0 90 % sur une diagonale de 44 mm et sup\u00e9rieure \u00e0 70 % en p\u00e9riph\u00e9rie du champ.<\/p>\n<h3>Compatibilit\u00e9 et montage<\/h3>\n<p>Le r\u00e9ducteur reste fixe \u00e0 l\u2019int\u00e9rieur du tube, viss\u00e9 \u00e0 l\u2019arri\u00e8re du groupe G4. Les bagues portant la cam\u00e9ra l\u2019entourent ; ce montage r\u00e9duit la charge sur le porte-oculaire. Le backfocus m\u00e9canique est de 56,2 mm, mesur\u00e9 depuis la sortie de l\u2019adaptateur type 2 repr\u00e9sent\u00e9 sur le plan constructeur. Sur la FSQ-106ED classique, le collier rotatif g\u00e9ant TKP86200, vendu s\u00e9par\u00e9ment, peut remplacer la bague allonge TKA36582 pour ajuster le cadrage. Le jeu de raccords doit \u00eatre choisi selon la version de la lunette et la cam\u00e9ra.<\/p>\n<h3>Features<\/h3>\n<div>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th>Features<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<th scope=\"row\">Reference<\/th>\n<td>TKA36580L<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Model<\/th>\n<td>645RD QE0.72x<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Instrument<\/th>\n<td>FSQ-106ED\/EDX4<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Facteur nominal<\/th>\n<td>0,72\u00d7<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Focale avec FSQ-106EDX4<\/th>\n<td>380 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Rapport F\/D r\u00e9sultant<\/th>\n<td>3,6<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Construction<\/th>\n<td>4 lentilles en 4 groupes<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Corrected image circle<\/th>\n<td>60 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Input<\/th>\n<td>M72 \u00d7 0,75 m\u00e2le<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Interface m\u00e9canique en sortie<\/th>\n<td>None<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Mechanical backfocus<\/th>\n<td>56,2 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Length<\/th>\n<td>74,2 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Mass<\/th>\n<td>200 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>R\u00e9ducteur 645-QE 0,72\u00d7 pour FSQ-106ED\/EDX4 : focale de 380 mm \u00e0 F\/D 3,6 sur EDX4, cercle image corrig\u00e9 de 60 mm et montage fixe interne.<\/p>","protected":false},"featured_media":18388,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[650],"product_tag":[],"class_list":["post-18399","product","type-product","status-publish","has-post-thumbnail","product_brand-takahashi","product_cat-rducteurs-correcteurs-ap","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/18399","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=18399"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/18388"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=18399"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=18399"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=18399"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=18399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}