{"id":18182,"date":"2026-09-28T21:06:32","date_gmt":"2026-09-28T19:06:32","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=18182"},"modified":"2026-11-14T11:06:30","modified_gmt":"2026-11-14T10:06:30","slug":"takahashi-fc-100df-tube-seul","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-fc-100df-tube-seul\/","title":{"rendered":"Takahashi FC-100DF \u2013 100 mm fluorite telescope, tube only"},"content":{"rendered":"<div class=\"product\"><div class=\"product\"><h3>A 100-mm fluorite eyepiece for visual observation and photography<\/h3>\n<p>The Takahashi FC-100DF is a 100-mm apochromatic refractor designed for astronomical observation and photography. Its air-spaced doublet features an internal fluorite lens and a hard multi-layer coating. The native focal length of 740 mm corresponds to an f\/7.4 ratio.<\/p>\n<h3>Focus and Size<\/h3>\n<p>The 50.8-mm sliding rail allows for the mounting of compatible visual and photographic accessories. The tube measures 785 mm with a fixed anti-fog shield, and its outer diameter is 95 mm.<\/p>\n<h3>Choosing a Photo Collage<\/h3>\n<p>The 76D-FL corrector, the FC\/FS MFL1.04X multi-flattener, and the 76D-RD and FC-35RD reducers are available as options. With the FC-35RD, the focal length increases to 480 mm at f\/4.8, resulting in a corrected image circle of 44 mm. Takahashi specifically recommends this reducer for APS-C sensors or larger.<\/p>\n<p>The diagram for the selected corrector specifies the connections and the distance from the sensor that must be maintained for this eyepiece.<\/p>\n<h3>Delivered Contents and Assembly<\/h3>\n<p>Takahashi FC-100DF optical tube, part number TFK10110, with objective lens and focuser. Be sure to select a mount and adapter suitable for the complete assembly, as well as the accessories you need for your specific use.<\/p>\n<p><a href=\"https:\/\/takahashi-europe.com\/references\/TFK10110\/fr\" target=\"_blank\" rel=\"noopener\">Takahashi FC-100DF Specifications and Documentation<\/a><\/p>\n<h3>Accessories for Your System<\/h3>\n<ul>\n<li><a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka21420-collier\/\">Collar for FC-76DS\/FC-100\/FSQ-85EDX (95 mm diameter) (TKA21420)<\/a> : optional accessory, sold separately.<\/li>\n<li><a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka00582\/\">1.04x Multi-Corrector No. 80N for FS-60CB\/FC-76\/FC-100 (TKA00582)<\/a> : optional accessory, sold separately.<\/li>\n<\/ul>\n<h3>Taking Photos with the New FCT-L Accessories<\/h3>\n<p>The <a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/reducteur-focale-takahashi-fct-l-08x\/\">Takahashi FCT-L 0.8x Focal Reducer<\/a> allows the FC-100DF to be used at 587 mm and f\/5.9, with an image circle of 44 mm.<\/p>\n<p>The <a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/correcteur-champ-takahashi-fct-l-099x\/\">Takahashi FCT-L 0.99x Field Corrector<\/a> flattens the field while maintaining a focal length of 734 mm at f\/7.3, with an image circle of 55 mm.<\/p>\n<p>These two accessories are sold separately and use the FCT-L CO 100DF ring, which is compatible with the FC-100DF. The kit also includes the Camera Angle Adjuster M. When using the FCT-L 0.99x corrector, the M72 L52 extension tube is required as an additional accessory for the FC-100DF.<\/p>\n<p>For a CMOS camera, select the M72-M48 or M72-M54 end adapter that matches the camera\u2019s connection. The sensor plane must be located 55 mm from the base of the thread on the camera side of this adapter. Refer to the Takahashi diagram for the selected converter for the order of the parts and the necessary connections.<\/p>\n<p>With the FC-100DF, Takahashi notes a slight residual chromatic halo originating from the lens when using either of the two FCT-L converters.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Takahashi FC-100DF telescope with a 100 mm fluorite doublet, native focal length of 740 mm at f\/7.4, and a 50.8 mm rack. Optical tube only configuration, part number TFK10110.<\/p>","protected":false},"featured_media":18180,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[755],"product_tag":[],"class_list":["post-18182","product","type-product","status-publish","has-post-thumbnail","product_brand-takahashi","product_cat-lunettes-apochromatiques","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/18182","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=18182"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/18180"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=18182"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=18182"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=18182"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=18182"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}