{"id":17907,"date":"2026-09-27T23:16:14","date_gmt":"2026-09-27T21:16:14","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=17907"},"modified":"2026-11-14T11:05:07","modified_gmt":"2026-11-14T10:05:07","slug":"takahashi-epsilon-180ed-tube-seul","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-epsilon-180ed-tube-seul\/","title":{"rendered":"Takahashi Epsilon-180ED: 180 mm f\/2.8 astrograph, tube only"},"content":{"rendered":"<div class=\"product\"><div class=\"product\"><h3>A light-gathering astrograph for wide fields of the deep sky<\/h3>\n<p>The Epsilon-180ED combines a 180-mm aperture with a 500-mm focal length and an f\/2.8 aperture ratio. This modified hyperbolic Newtonian telescope is designed for imaging large stellar fields and nebulae. Its f\/2.8 aperture is well-suited for photographing diffuse objects and vast stellar fields. The model number TEK18010 refers to the optical tube only version.<\/p>\n<h3>Field Correction and Preparation for Editing<\/h3>\n<p>The hyperbolic primary mirror works with a flat secondary mirror and a two-lens ED glass corrector integrated into the rack. The 44-mm corrected image circle covers the 24 \u00d7 36-mm format. To mount the camera, assemble the photographic train according to the 56.2 mm backfocus specified by Takahashi and the corrector\u2019s interfaces. The focusing system includes a rotating collar for adjusting the photographic framing.<\/p>\n<h3>Optical Adjustment and Dimensions<\/h3>\n<p>Markings on both mirrors are used to adjust the collimation. The collimation procedure can be performed during the day using the tube and the Takahashi collimation eyepiece, which are sold separately. The tube is 570 mm long and 232 mm in diameter; its listed weight is 10.7 kg. Be sure to use a mount and mounting bracket suitable for this weight, plus the clamps and photographic train.<\/p>\n<h3>Accessories for Alignment and Mounting<\/h3>\n<ul>\n<li><strong>Aligning the mirrors:<\/strong> combine the <a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka00442-accessoire\/\">TKA00442 collimation tube<\/a> at the\u2019<a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka00441-accessoire\/\">TKA00441 collimation eyepiece<\/a>. The cross-member helps center the secondary mirror; the eyepiece positions the eye on the axis to check the alignment marks. For the Epsilon-180ED, the Takahashi diagram specifies visual adapter set No. 10, collimation tube No. 19, ring No. 14, 31.75 mm eyepiece holder No. 46, followed by collimation eyepiece No. 29. This adjustment setup uses the outlet without the photographic corrector No. 18, as specified in the manual.<\/li>\n<li><strong>Install the tube on the mount:<\/strong> visit <a href=\"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-232ws-tka68420s\/\">232WS TKA68420S Double Clamps<\/a> are designed for the Epsilon-180ED. They include a top plate, but the bottom plate or dovetail must be selected separately. Takahashi recommends the S TMP02300 plate; for an alternative mounting, check the hole patterns and center distances.<\/li>\n<\/ul>\n<h3>Components of this item<\/h3>\n<p>Takahashi Epsilon-180ED optical tube only, part number TEK18010, with its built-in ED corrector. The mount, finder scope, mounting clamps, photographic adapters, and collimation tools must be selected separately based on your setup.<\/p>\n<p>Manufacturer's part number: TEK18010. <a href=\"https:\/\/takahashi-europe.com\/references\/TEK18010\/fr\" target=\"_blank\" rel=\"noopener\">Takahashi's Official Profile<\/a>.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Designed for photographing nebulae and wide-field star fields, the Takahashi Epsilon-180ED combines a 180 mm aperture with a focal length of 500 mm at f\/2.8. Its built-in ED corrector provides a corrected image circle of 44 mm. Optical tube only version: TEK18010.<\/p>","protected":false},"featured_media":17902,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[747],"product_tag":[],"class_list":["post-17907","product","type-product","status-publish","has-post-thumbnail","product_brand-takahashi","product_cat-newton","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/17907","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=17907"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/17902"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=17907"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=17907"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=17907"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=17907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}