{"product_id":"tele-vue-in-travel-adapter-2-inch-1-25-inch","title":"Tele Vue In-Travel Adapter - 2\" - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFunction: Reduces focuser in-travel requirements\u003c\/li\u003e\n\u003cli\u003eCompatibility: 2\" focusers and diagonals\u003c\/li\u003e\n\u003cli\u003eAccessory Size: 1.25\" eyepieces and accessories\u003c\/li\u003e\n\u003cli\u003eLocking Mechanism: Brass clamp ring\u003c\/li\u003e\n\u003cli\u003eMaterial: Black anodized aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eReach Focus When Every Millimeter Counts\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue In-Travel Adapter is a precision-engineered 2\" to 1.25\" reducer designed for a single, critical purpose: to solve focusing problems in telescopes with limited in-travel. By minimizing the optical path length, this adapter allows you to bring 1.25\" eyepieces to a sharp focus in systems where standard adapters simply run out of room, making it an essential tool for specific reflector and imaging configurations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolving the In-Travel Problem with a Low-Profile Design\u003c\/h3\u003e\n\u003cp\u003eMany Newtonian reflectors, especially when used for imaging or with certain coma correctors, require the focuser to be racked further in than a standard eyepiece adapter will allow. The Tele Vue In-Travel Adapter addresses this by positioning your 1.25\" eyepiece deeper inside the 2\" focuser drawtube. This reduction in optical path is often the difference between a soft, unfocused view and a crisp, perfectly sharp image.\u003c\/p\u003e\n\u003cp\u003eThis adapter is the right choice when you have a high-quality 1.25\" planetary eyepiece or filter that you want to use with a system that has marginal focus travel. It can save you from having to modify your telescope or purchase a new low-profile focuser. It is a simple, elegant solution to a common and frustrating optical problem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure, Non-Marring Brass Clamp Ring\u003c\/h3\u003e\n\u003cp\u003eProtecting your valuable eyepieces is paramount. The In-Travel Adapter features Tele Vue's signature non-marring brass clamp ring, which provides a firm, 360-degree grip on the eyepiece barrel without leaving scratches or gouges. Unlike simple thumbscrew designs that push the eyepiece off-center, the clamp ring ensures perfect axial alignment every time.\u003c\/p\u003e\n\u003cp\u003eThis secure connection is critical for maintaining optical alignment, especially for imaging applications where any tilt can degrade performance at the edge of the field. The brass ring tightens smoothly and securely, giving you confidence that your accessory is locked in place and perfectly centered in the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt for Reliability\u003c\/h3\u003e\n\u003cp\u003eEvery component of the In-Travel Adapter is designed for performance and longevity. The main body is machined from solid aluminum and finished with a durable black anodizing. This matte black surface minimizes stray light reflections inside the focuser, helping to maintain maximum image contrast by preventing errant light from reaching the eyepiece.\u003c\/p\u003e\n\u003cp\u003eThe adapter also includes a helical-cut safety groove on the 2\" barrel. This feature engages with the focuser's locking screw to prevent the adapter and your eyepiece from suddenly slipping out if the screw is accidentally loosened. It is a small but vital detail that protects your equipment from a potentially damaging fall in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComparative Perspective: Standard vs. In-Travel Adapter\u003c\/h3\u003e\n\u003cp\u003eChoosing the right adapter is about understanding your telescope's specific needs. Tele Vue offers several high-quality 2\" to 1.25\" adapters, each with a distinct purpose.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Standard Flat-Top Adapter (ACF-2125):\u003c\/strong\u003e The standard adapter is perfect for most refractors and SCTs, which typically have ample focus travel. The In-Travel Adapter is specifically for instruments, like many Newtonians, that are starved for in-focus travel. If you can already reach focus with a standard adapter, you do not need this one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Hi-Hat Adapter (BEC-0005):\u003c\/strong\u003e The Hi-Hat adapter is designed to add significant height (out-travel) and is parfocal with Tele Vue's 2\" eyepieces. The In-Travel adapter does the exact opposite, consuming minimal back focus. They are solutions for opposite focusing challenges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe In-Travel Adapter is not an upgrade over a standard adapter; it is a specialized problem-solver. It is the component you reach for when your focuser hits its inward limit just before the stars snap into focus. For observers and imagers with specific Newtonian or custom-built telescopes, it is an indispensable piece of kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen do I need the In-Travel Adapter instead of a standard 2\" to 1.25\" adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need the In-Travel Adapter if your telescope cannot reach focus with a 1.25\" eyepiece because the focuser hits its innermost limit. This is most common with Newtonian reflectors, especially when used with coma correctors like the Paracorr.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter scratch my eyepiece barrels?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It uses a soft, non-marring brass clamp ring that tightens around the eyepiece, providing a secure grip without causing the scratches and gouges typical of single-screw locking mechanisms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much in-travel does this adapter save compared to a standard one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe In-Travel Adapter is designed to be as short as possible, saving approximately 0.75 inches (19mm) of back focus compared to Tele Vue's standard flat-top adapter. This is often enough to solve most in-travel issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with Tele Vue's Paracorr Type 2?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is designed to work perfectly with the Paracorr Type 2. Using this adapter is often necessary to ensure 1.25\" eyepieces can reach focus in fast Newtonian telescopes equipped with the Paracorr.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Since 1.25\" filters thread directly onto the eyepiece barrel, this adapter's function is unaffected. You can use your filtered 1.25\" eyepieces without any issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel #\u003c\/td\u003e\n\u003ctd\u003eAIT-2125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Type\u003c\/td\u003e\n\u003ctd\u003eReducer, Low Profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side\u003c\/td\u003e\n\u003ctd\u003e2\" Barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Side\u003c\/td\u003e\n\u003ctd\u003e1.25\" with Brass Clamp Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum, Brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.4 oz (68 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTele Vue In-Travel Adapter - 2\" to 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/tele-vue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTele Vue 5-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223880335645,"sku":"TV-AIT-2125","price":87.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_In-Travel_Adapter_1.jpg?v=1777515024","url":"https:\/\/davidastro.com\/products\/tele-vue-in-travel-adapter-2-inch-1-25-inch","provider":"David Astro","version":"1.0","type":"link"}