{"product_id":"juego-de-casquillos-de-prolongacion-bresser-t2","title":"BRESSER T2 Extension Tube Set","description":"\u003cb\u003eSet consisting of 5 extension tubes with T2 threads on both sides, for maintaining exact distances and securely attaching cameras in astrophotography. With additional SC to T2 thread adapter.\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eIn astrophotography, cameras are almost always connected to the telescope via the international standard \u003cb\u003eT2 thread (M42x0.75)\u003c\/b\u003e. Often, adapters from the telescope's focuser to T2 and a T2 ring on the camera connection are not enough; certain distances must also be maintained. This applies especially when using correctors, reducers, or flatteners. In these cases, this set of extension tubes is useful; the tubes measure \u003cb\u003e5 mm, 7.5 mm, 10 mm, 15 mm, and 30 mm in length\u003c\/b\u003e, and by combining them appropriately, almost any desired distance can be achieved. Each tube has an internal T2 thread on one side and an external T2 thread on the other.\u003cbr\u003e\u003cbr\u003eMost telescopes include an adapter to a T2 thread, or a simple 2'' eyepiece focuser adapter to a T2 thread (item number 0510365) can be used. \u003cbr\u003eHowever, many manufacturers' Maksutov-Cassegrain, Schmidt-Cassegrain, ACF, or Ritchey Chrétien telescopes use the so-called SC thread. So that our extension tube set can also be used with these telescopes, it also includes an SC to T2 thread adapter.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFEATURES\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e5 T2 tubes from 5 mm to 30 mm in length\u003c\/li\u003e\n\u003cli\u003eBy combining the tubes, distances from 5 mm to 67.5 mm can be achieved\u003c\/li\u003e\n\u003cli\u003eFor obtaining exact camera distances in astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cb\u003eINCLUDES\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003e5 T2 extension tubes (5\/7.5\/10\/15\/30 mm)\u003c\/li\u003e\n\u003cli\u003e1 SC to T2 thread adapter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e","brand":"Bresser","offers":[{"title":"Default Title","offer_id":52886258188631,"sku":"4940160","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/6198\/6860\/files\/4940160.jpg?v=1772195356","url":"https:\/\/astrotelescopios.com\/en-us\/products\/juego-de-casquillos-de-prolongacion-bresser-t2","provider":"Astro Telescopios","version":"1.0","type":"link"}