Visit Sky-Watcher focal reducer \/ field corrector 0.77x<\/strong> has been specially designed for the apochromatic telescope Sky-Watcher Esprit-120 ED<\/strong>. Thanks to its high-end three-lens optical design, this accessory considerably improves astrophotography performance by reducing the telescope's focal length while effectively correcting field curvature.<\/p>\n With its reduction factor of 0.77x<\/strong>, This corrector transforms the Esprit-120ED into an even faster and brighter instrument. The focal ratio is reduced to f\/5.4<\/strong>, This reduces exposure times while increasing the photographic field of view. This feature is particularly appreciated for deep-sky imaging, especially of extensive nebulae, galaxies and large stellar fields.<\/p>\n The optical formula at three lenses<\/strong> provides excellent aberration correction and produces fine, punctual stars across the entire field. The reducer\/corrector generates a fully illuminated, corrected image circle of 34 mm<\/strong>, perfectly suited to APS-C<\/strong>. It can also be used with full format,<\/strong> The corrector is supplied with a standard threaded adapter. M48 x 0.75<\/strong> and a 55 mm<\/strong>. This configuration allows direct compatibility with Sky-Watcher's Canon EOS and Nikon adapter rings, After removal of the supplied adapter, an internal thread M71x1<\/strong> becomes accessible with a maximum back focus of 75 mm<\/strong>. This offers greater flexibility to experienced astrophotographers wishing to create their own optical configurations or use specific accessories such as filter wheels, cooled cameras or motorized focusing systems.<\/p>\n The Sky-Watcher 0.77x reducer\/corrector is also compatible with astronomical filters in the format 2 inches<\/strong>, This makes it easy to integrate anti-light pollution, UHC, OIII or narrowband filters into an advanced photo configuration. This compatibility makes it a particularly interesting accessory for users practicing astrophotography from urban areas or wishing to shoot narrowband images.<\/p>\n Its robust, precise construction guarantees excellent support of the optical train, even with heavy cameras or complex configurations. With a weight of approx. 910 g <\/strong>(caps included), this corrector offers excellent mechanical stability while retaining the high-end finish befitting Sky-Watcher's Esprit series.<\/p>\n By reducing the Esprit-120ED's focal length while perfectly correcting the field of view, this 0.77x reducer\/corrector is an essential accessory for astrophotographers wishing to maximize their telescope's performance. It enhances brightness, widens the photographic field and guarantees outstanding image quality on modern high-resolution sensors.<\/p>\n R\u00e9ducteur \/ Correcteur 0.77x pour Esprit-120ED Le r\u00e9ducteur de focale \/ correcteur de champ Sky-Watcher 0.77x a \u00e9t\u00e9 sp\u00e9cialement con\u00e7u pour la lunette apochromatique Sky-Watcher Esprit-120 ED. Gr\u00e2ce \u00e0 sa conception optique haut de gamme \u00e0 trois lentilles, cet accessoire am\u00e9liore consid\u00e9rablement les performances en astrophotographie en r\u00e9duisant la focale du t\u00e9lescope tout en corrigeant […]<\/p>\n","protected":false},"featured_media":14949,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[822],"product_cat":[650,19],"product_tag":[],"class_list":["post-14948","product","type-product","status-publish","has-post-thumbnail","product_brand-sky-watcher","product_cat-rducteurs-correcteurs-ap","product_cat-accessoires","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/14948","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=14948"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/14949"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=14948"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=14948"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=14948"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=14948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\noffering great versatility for different astronomical imaging systems.<\/p>\n
\nmaking it easy to install an SLR or hybrid camera on the Esprit-120ED.<\/p>\nTechnical specifications<\/h3>\n
\n\n
\n Features<\/th>\n Detail<\/th>\n<\/tr>\n \n Product<\/td>\n Sky-Watcher Reducer \/ Corrector 0.77x<\/td>\n<\/tr>\n \n Compatibility<\/td>\n Sky-Watcher Esprit-120ED<\/td>\n<\/tr>\n \n Reduction factor<\/td>\n 0.77x<\/td>\n<\/tr>\n \n Focal ratio obtained<\/td>\n f\/5.4<\/td>\n<\/tr>\n \n Optical design<\/td>\n 3 lenses<\/td>\n<\/tr>\n \n Corrected image circle<\/td>\n 34 mm<\/td>\n<\/tr>\n \n Sensor compatibility<\/td>\n APS-C and full-frame<\/td>\n<\/tr>\n \n Filter compatibility<\/td>\n 2-inch filters<\/td>\n<\/tr>\n \n Back focus<\/td>\n 55 mm with adapter \/ 75 mm without adapter<\/td>\n<\/tr>\n \n Adapter thread<\/td>\n M48 x 0.75<\/td>\n<\/tr>\n \n Internal thread<\/td>\n M71x1<\/td>\n<\/tr>\n \n Weight<\/td>\n 910 g with caps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"