{"product_id":"starlight-instruments-3-5-adapter-for-william-optics-flt151-flt152-flt158-ts152-telescopes","title":"Starlight Instruments 3.5\" Adapter for William Optics FLT151, FLT152, FLT158 \u0026 TS152 Telescopes","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects a 3.5\" Feather Touch Focuser to select William Optics telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with William Optics FLT151, FLT152, and FLT158 models\u003c\/li\u003e\n\u003cli\u003eCompatible with the TS152 Telescope\u003c\/li\u003e\n\u003cli\u003ePrecision-machined from high-quality aluminum\u003c\/li\u003e\n\u003cli\u003eEngineered by Starlight Instruments for a zero-flexure fit\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\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\u003eStarlight Instruments 3.5\" Adapter for William Optics FLT151, FLT152, FLT158 \u0026amp; TS152 Telescopes\u003c\/h2\u003e\n\u003cp\u003eThis Starlight Instruments 3.5\" Adapter provides the mechanically rigid, zero-flexure connection required to mount a 3.5\" Feather Touch focuser onto your William Optics FLT151, FLT152, FLT158, or TS152 telescope. Machined in-house by Starlight Instruments from high-quality aluminum, this adapter ensures that the precision of your focuser is perfectly translated to your optical tube, eliminating a common source of image shift and tilt in demanding astrophotography setups.\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\u003eA Precision-Machined Connection for 3.5\" Feather Touch Focusers\u003c\/h3\u003e\n\u003cp\u003eUpgrading to a 3.5\" Feather Touch focuser is a significant investment in your imaging system's accuracy. This custom adapter is the critical link that guarantees the upgrade's success. It is not a generic part, but a component engineered by Starlight Instruments to match the exact mechanical interface of the specified William Optics and TS refractors.\u003c\/p\u003e\n\u003cp\u003eBy creating a single, solid metal-to-metal connection, the adapter prevents the subtle flexure that can occur with multi-part or universal solutions, especially under the load of a heavy camera and filter wheel. This ensures your entire optical train remains perfectly orthogonal to the focal plane, preserving the exceptional field correction of your telescope.\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\"\u003eWhy do I need this specific Starlight Instruments adapter for my William Optics FLT158?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is custom-machined to create a perfect, non-flexing mechanical bond between the FLT158's optical tube and a 3.5\" Feather Touch focuser. Using a generic or mismatched adapter can introduce tilt and image shift, negating the precision of your high-end focuser and compromising image sharpness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Starlight Instruments adapter fit any focuser other than a 3.5\" Feather Touch?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the mounting pattern and dimensions of Starlight Instruments' 3.5\" line of Feather Touch focusers. It will not fit other sizes or brands of focusers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of using this adapter over a generic solution for my FLT151?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is mechanical rigidity. This adapter is a single, solid piece of machined aluminum designed for a specific telescope and focuser combination. This eliminates the potential for flexure and misalignment common in \"universal\" adapters, which is critical when supporting a heavy astrophotography camera train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Starlight Instruments adapter ensure proper alignment for astrophotography with an FLT152?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy being precision-machined for the FLT152, the adapter guarantees that the focuser is mounted perfectly square to the telescope's optical axis. This orthogonality is essential for achieving sharp stars across the entire imaging sensor, especially with the flat field of a high-quality refractor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter made from the same quality materials as a Feather Touch focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. It is machined by Starlight Instruments in their own shop from high-quality aluminum and held to the same high standards of precision and finish as their world-renowned focusers. This ensures a perfect match in both function and aesthetics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a TS152 refractor; is this the correct adapter to install a 3.5\" Starlight Instruments focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is confirmed to be compatible with the TS152 telescope, providing the correct mechanical interface to securely mount a 3.5\" Feather Touch focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":52948910145821,"sku":"SI-A35-503-WOFLT152","price":270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/StarlightInstruments-A35-503-WOFLT152-Adapter-3-5-for-WILLIAM-OPTICS-FLT151-FLT152-FLT158-telescopes-and-TS152-1_11e0171f-3815-4882-a059-c5be70b8f94e.jpg?v=1789658785","url":"https:\/\/davidastro.com\/fr-us\/products\/starlight-instruments-3-5-adapter-for-william-optics-flt151-flt152-flt158-ts152-telescopes","provider":"David Astro","version":"1.0","type":"link"}