{"id":18431,"date":"2026-09-29T16:23:21","date_gmt":"2026-09-29T14:23:21","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=18431"},"modified":"2026-11-14T11:22:24","modified_gmt":"2026-11-14T10:22:24","slug":"takahashi-tka00580s","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka00580s\/","title":{"rendered":"Takahashi Multi Reducer 0.85\u00d7-S for FS-60"},"content":{"rendered":"

Function and Use<\/h3>\n

The 0.85\u00d7-S Multi Reducer expands the FS-60\u2019s field of view by reducing the focal length to 300 mm at an F\/D ratio of 5.0. Its four elements in three groups correct the field of view to a 44 mm image circle, compatible with full-frame format. This configuration is suitable for wide-angle subjects that require a wider field of view than the native focal length provides.<\/p>\n

Compatibility and Installation<\/h3>\n

The S version includes the reducer and its dedicated CA ring. It mounts on the FS-60CB, FS-60CBX, FS-60CP, FS-60Q, and FS-60C. On the FS-60Q, remove the 1.7\u00d7 CQ extender to use this configuration. On the older FS-60C, the S rotating collar must be removed to allow for focusing. On the camera side, the included CA ring features an M52 \u00d7 0.75 thread and accommodates the camera adapter ring suitable for the camera body, according to the Takahashi diagram.<\/p>\n

Features<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Features<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Reference<\/th>\nTKA00580S<\/td>\n<\/tr>\n
Version<\/th>\nMulti Reducer 0.85\u00d7-S<\/td>\n<\/tr>\n
Construction<\/th>\n4 lenses in 3 groups<\/td>\n<\/tr>\n
Instruments<\/th>\nFS-60CB, FS-60CBX, FS-60CP, FS-60Q, and FS-60C<\/td>\n<\/tr>\n
Resulting focus<\/th>\n300 mm<\/td>\n<\/tr>\n
F\/D ratio<\/th>\nF\/5.0<\/td>\n<\/tr>\n
Image circle<\/th>\n44 mm<\/td>\n<\/tr>\n
Diameter<\/th>\n60 mm<\/td>\n<\/tr>\n
Length<\/th>\n55.8 mm<\/td>\n<\/tr>\n
Thread on the instrument side<\/th>\nM55.9 \u00d7 0.75<\/td>\n<\/tr>\n
Thread on the camera side, CA ring<\/th>\nM52 \u00d7 0.75<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

0.85\u00d7-S reducer with dedicated CA ring, 44 mm image circle, and a focal length of 300 mm at F\/D 5.0 on the FS-60.<\/p>","protected":false},"featured_media":18426,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[650],"product_tag":[],"class_list":["post-18431","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\/18431","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=18431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/18426"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=18431"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=18431"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=18431"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=18431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}