{"id":18349,"date":"2026-09-29T10:58:24","date_gmt":"2026-09-29T08:58:24","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=18349"},"modified":"2026-11-14T11:33:08","modified_gmt":"2026-11-14T10:33:08","slug":"takahashi-tka11580f","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka11580f\/","title":{"rendered":"Takahashi 65D FU 0.65\u00d7 \u2014 Reducer for FCT-65D"},"content":{"rendered":"

Capturing a Wider View<\/h3>\n

The 65D FU reducer shortens the focal length of the FCT-65D to 260 mm at f\/4, allowing you to frame large nebulae and expansive star fields. Its corrected 44 mm image circle covers the 24 \u00d7 36 mm format. Its optical design consists of four elements in four groups, including one fluorite element, to correct aberrations in the lens-reducer combination.<\/p>\n

Compatibility and Installation<\/h3>\n

This model is designed for the FCT-65D. Its body fits into the focusing tube and is secured with an M64 \u00d7 0.75 male thread. The CA-35 FURD camera adapter is included. To install it, unscrew this pre-assembled adapter, attach the telescope\u2019s CAA-S rotating collar, and then screw the CA-35 back on behind it. The M52 \u00d7 0.75 male output then provides a backfocus of 56 mm. The ring for your camera or video camera should be selected based on this interface and the distance to the sensor.<\/p>\n

Features<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
Features<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Reference<\/th>\nTKA11580F<\/td>\n<\/tr>\n
Factor<\/th>\n0,65\u00d7<\/td>\n<\/tr>\n
Instrument<\/th>\nFCT-65D<\/td>\n<\/tr>\n
Resulting focus<\/th>\n260 mm<\/td>\n<\/tr>\n
Focus report<\/th>\nf\/4<\/td>\n<\/tr>\n
Corrected image circle<\/th>\n44 mm<\/td>\n<\/tr>\n
Optical package<\/th>\n4 lenses in 4 groups, including one made of fluorite<\/td>\n<\/tr>\n
Backfocus with CAA-S and CA-35 FURD<\/th>\n56 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

65D FU 0.65\u00d7 Reducer for FCT-65D: 260 mm focal length at f\/4, 44 mm corrected image circle, and CA-35 FURD adapter included.<\/p>","protected":false},"featured_media":18343,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[650],"product_tag":[],"class_list":["post-18349","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\/18349","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=18349"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/18343"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=18349"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=18349"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=18349"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=18349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}