{"id":17977,"date":"2026-09-28T04:34:17","date_gmt":"2026-09-28T02:34:17","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&p=17977"},"modified":"2026-11-14T11:17:52","modified_gmt":"2026-11-14T10:17:52","slug":"takahashi-tka00442-accessoire","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/takahashi-tka00442-accessoire\/","title":{"rendered":"Takahashi TKA00442: Collimation Tube for the Newton Epsilon"},"content":{"rendered":"

Center the midpoint of an Epsilon<\/h3>\n

The TKA00442 tube is designed for adjusting the secondary mirror on Takahashi Newtonian telescopes, particularly the Epsilon models with hyperbolic mirrors. Its crosshair reticle serves as a reference point aligned with the markings on the secondary mirror. It does not, by itself, replace the entire collimation procedure.<\/p>\n

A Special Mechanical Connection<\/h3>\n

The mounting assembly uses an M36.4\u00d71 male thread. The tube screws onto the No. 14 input ring of the Epsilon 31.75 mm eyepiece holder. It is therefore not simply an accessory that can be inserted into just any 31.75 mm slip. The instrument\u2019s configuration diagram allows you to verify the connection.<\/p>\n

To be used with the collimation eyepiece<\/h3>\n

Takahashi recommends using this product in combination with the TKA00441 collimation eyepiece for complete collimation. The manufacturer advises against using this product on instruments other than Epsilon models due to specific optical and mechanical requirements. This caution applies even when a connector with a similar diameter appears to be available.<\/p>\n

Technical specifications<\/h3>\n\n\n\n\n\n\n\n\n
Takahashi TKA00442: Collimation Tube for the Newton Epsilon<\/caption>\n
Features<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Reference<\/th>\nTKA00442<\/td>\n<\/tr>\n
Mechanical Output Interface<\/th>\nM36.4\u00d71 male thread<\/td>\n<\/tr>\n
Dimensions<\/th>\nHeight: 80 mm. Diameter: 39.5 mm<\/td>\n<\/tr>\n
Weight<\/th>\n50 g<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Components of this item<\/h3>\n

TKA00442 collimation tube with a wire crosshair. The TKA00441 eyepiece required for full collimation is a separate item and is not listed as included.<\/p>\n

Reference: TKA00442. Takahashi's Official Profile<\/a>.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Reticle collimation tube for Takahashi Epsilon Newtonian telescopes. M36.4\u00d71 male thread; to be used with the TKA00441 eyepiece, sold separately.<\/p>","protected":false},"featured_media":17972,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[947],"product_cat":[823],"product_tag":[],"class_list":["post-17977","product","type-product","status-publish","has-post-thumbnail","product_brand-takahashi","product_cat-collimation","first","on_supplier","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/17977","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=17977"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/17972"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=17977"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=17977"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=17977"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=17977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}