{"product_id":"lunt-telescope-focuser","title":"Lunt Telescope Focuser","description":"\u003cdiv class=\"kt-page\"\u003e\n\n\u003cstyle\u003e\n.kt-page{--kt-primary:#030B1C;--kt-accent:#2E7FBF;max-width:1100px;margin:0 auto;font-family:inherit;}\n.kt-page.kt-page--wide{max-width:1600px;}\n.kt-page .kt-hero{display:flex;align-items:center;gap:40px;margin-bottom:40px;}\n.kt-page .kt-hero-copy{flex:1 1 55%;}\n.kt-page .kt-hero-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-sq{width:100%;max-width:420px;aspect-ratio:1\/1;margin:0 auto;background:#ffffff;border-radius:6px;display:flex;align-items:center;justify-content:center;overflow:hidden;}\n.kt-page .kt-sq img{max-width:92%;max-height:92%;width:auto;height:auto;object-fit:contain;}\n.kt-page .kt-hero-copy h2{font-size:26px;margin-bottom:14px;}\n.kt-page .kt-hero-copy p{font-size:16px;line-height:1.6;margin-bottom:14px;}\n.kt-page .kt-features{display:flex;align-items:flex-start;gap:40px;margin:40px 0;}\n.kt-page .kt-features-copy{flex:1 1 55%;}\n.kt-page .kt-features-img{flex:1 1 40%;text-align:center;}\n.kt-page .kt-section-heading{font-size:21px;display:inline-block;padding-bottom:8px;border-bottom:2px solid var(--kt-accent);margin-bottom:18px;}\n.kt-page .kt-feature-list{list-style:none;margin:0;padding:0;}\n.kt-page .kt-feature-list li{font-size:16px;line-height:1.5;margin-bottom:12px;padding-left:26px;position:relative;}\n.kt-page .kt-feature-list li:before{content:\"\\2713\";color:var(--kt-accent);font-weight:bold;position:absolute;left:0;}\n.kt-page .kt-feature-list b{color:#222;}\n.kt-page .kt-specs-wrap{box-sizing:border-box;}\n.kt-page .kt-specs{display:table !important;width:100% !important;border-collapse:collapse;margin:40px 0;font-size:15px;}\n.kt-page .kt-specs th,.kt-page .kt-specs td{border:2px solid #000;padding:10px 12px;text-align:left;}\n.kt-page .kt-specs th{background:var(--kt-primary) !important;color:#fff !important;font-size:16px;}\n.kt-page .kt-specs tr:nth-child(even){background:#f2f2f2;}\n.kt-page .kt-specs tr:nth-child(odd){background:#ffffff;}\n.kt-page .kt-cta{text-align:center;margin:40px 0;font-size:18px;font-weight:bold;}\n.kt-page .kt-cta-buttons{display:flex;justify-content:center;gap:16px;margin-top:16px;flex-wrap:wrap;}\n.kt-page .kt-cta-buttons a{display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;font-size:15px;transition:all .15s ease;}\n.kt-page .kt-cta-buttons a:hover{background:var(--kt-primary);color:#fff;}\n.kt-page .kt-manuals a{display:block;color:var(--kt-primary);font-weight:bold;font-size:30px;text-align:left;text-decoration:none;margin-bottom:10px;}\n.kt-page .kt-manuals a:hover{color:var(--kt-accent);}\n@media (max-width:768px){\n  .kt-page .kt-hero,.kt-page .kt-features{flex-direction:column;}\n  .kt-page .kt-hero-img img,.kt-page .kt-features-img img{max-width:400px;}\n  .kt-page .kt-hero-copy p,.kt-page .kt-features-copy p{font-size:17px;}\n  .kt-page .kt-cta-buttons{display:grid;grid-template-columns:1fr 1fr;gap:12px;}\n  .kt-page .kt-cta-buttons a:nth-child(3){grid-column:1 \/ span 2;}\n  .kt-page .kt-manuals a{font-size:24px;}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"kt-hero\"\u003e\n  \u003cdiv class=\"kt-hero-copy\"\u003e\n    \u003ch2\u003ePrecision Focus Control For Lunt Solar Scopes\u003c\/h2\u003e\n        \u003cp\u003eLunt offers a focuser to match nearly every one of its solar telescopes, from a compact helical unit for small refractors up to a two inch dual speed rack and pinion. Choosing the right one comes down to the thread interface on your blocking filter or rear cell, the weight of the gear you plan to hang off it, and how fine you need the final adjustment to be.\u003c\/p\u003e\n    \u003cp\u003eThe 1.25 inch mini helical focuser threads T2 male to T2 female and gives ten millimeters of non rotating travel with a brass compression ring and a locking collar. The 1.25 inch rack and pinion steps up to a rotatable draw tube, half an inch of travel, positioning accuracy of plus or minus 0.002 inch, and a load rating of six to eight pounds.\u003c\/p\u003e\n    \u003cp\u003eFor imaging, the 10:1 versions matter. The 1.25 inch rack and pinion with 10:1 fine focus suits the LS40THa and LS50THa, while the two inch rack and pinion carries roughly 55 to 60 mm of travel, a 10:1 reduction, and works with ZWO EAF and Optec FocusLynx motor kits. At the top of the range, the SLF1.5 and SLF2.5 two inch draw tube focusers are Starlight Instruments Feather Touch units built in a Lunt specific configuration. Remember that any solar use still requires the telescope's own certified solar filtration.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-hero-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/8273\/7521\/files\/rack-pinion-focuser.jpg?v=1770221470\" alt=\"Lunt rack and pinion telescope focuser with black anodized body and dual focus knobs\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-features\"\u003e\n  \u003cdiv class=\"kt-features-copy\"\u003e\n    \u003ch3 class=\"kt-section-heading\"\u003eKey Features\u003c\/h3\u003e\n    \u003cul class=\"kt-feature-list\"\u003e\n      \u003cli\u003e\n\u003cb\u003eHelical Option\u003c\/b\u003e - the LSMINI\/1.25 gives ten millimeters of non rotating T2 to T2 travel with a brass compression ring and locking collar.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eRack And Pinion\u003c\/b\u003e - machined from aluminum and brass with a rotatable draw tube and backlash under 0.001 inch when properly adjusted.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eTen To One\u003c\/b\u003e - the 001-148 and the two inch 001-143 add 10:1 dual speed reduction for critical focus at high magnification.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eLoad Capacity\u003c\/b\u003e - six to eight pounds on the 1.25 inch rack and pinion, and 2.5 to 3.0 kg on the two inch version.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eStarlight Feather Touch\u003c\/b\u003e - the SLF1.5 and SLF2.5 two inch draw tube models are Starlight Instruments Feather Touch focusers supplied in a Lunt specific configuration.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eFeather Touch Upgrade\u003c\/b\u003e - the SLF2.5 delivers 2.5 inch of travel, 0.01 mm repeatability, and hardened stainless steel running surfaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cb\u003eMotor Ready\u003c\/b\u003e - the two inch rack and pinion accepts ZWO EAF and Optec FocusLynx or ThirdLynx motor focus systems.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"kt-features-img\"\u003e\n    \u003cdiv class=\"kt-sq\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0615\/8273\/7521\/files\/2in-1hf-Feather-Touch-Focuser-Vertical-1.png?v=1743112811\" alt=\"Two inch Starlight Feather Touch focuser shown upright with 10 to 1 fine focus knob\"\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"kt-specs-wrap\"\u003e\n\u003ctable class=\"kt-specs\"\u003e\n  \u003ctr\u003e\u003cth colspan=\"2\"\u003eSpecifications\u003c\/th\u003e\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eTelescope focusers, helical and rack and pinion, for Lunt solar and universal tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eModel \/ SKU\u003c\/td\u003e\n\u003ctd\u003eLSMINI\/1.25, 001-147, 001-148, 001-143, SLF1.5, SLF2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eLunt for the mini helical and rack and pinion models; Starlight Instruments (Feather Touch) in a Lunt specific configuration for SLF1.5 and SLF2.5\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e1.25 inch mini helical (LSMINI\/1.25)\u003c\/td\u003e\n\u003ctd\u003eT2 male to T2 female, 10 mm travel, non rotating, brass compression ring, locking collar\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e1.25 inch rack and pinion (001-147)\u003c\/td\u003e\n\u003ctd\u003e0.5 inch draw tube travel, rotatable, accuracy plus or minus 0.002 inch, load 6 to 8 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e1.25 inch rack and pinion 10:1 (001-148)\u003c\/td\u003e\n\u003ctd\u003e10:1 dual speed fine focus, listed for LS40THa and LS50THa\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e2 inch rack and pinion (001-143)\u003c\/td\u003e\n\u003ctd\u003eapproximately 55 to 60 mm travel, 10:1 reduction, M68 or M90 rear thread\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e2 inch Feather Touch, 1.5 inch travel (SLF1.5)\u003c\/td\u003e\n\u003ctd\u003eNot published\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e2 inch Feather Touch, 2.5 inch travel (SLF2.5)\u003c\/td\u003e\n\u003ctd\u003e2.5 inch travel, 0.01 mm repeatability, 52 mm threaded draw tube, lifts 2.5 kg or 5.5 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEyepiece side\u003c\/td\u003e\n\u003ctd\u003e2 inch compression ring with a 1.25 inch adapter included on the 001-143\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eCNC machined aluminum and brass; hardened stainless steel running parts on Feather Touch models\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMotor focus\u003c\/td\u003e\n\u003ctd\u003e001-143 compatible with ZWO EAF and Optec FocusLynx or ThirdLynx\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTelescope fit\u003c\/td\u003e\n\u003ctd\u003eSLF2.5 listed for LS130MT and LS152THa; 001-143 standard on 60MT, 80MT and 100MT\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eBacklash\u003c\/td\u003e\n\u003ctd\u003eunder 0.001 inch on the 1.25 inch rack and pinion; 0.0 mm quoted for the Feather Touch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSolar safety\u003c\/td\u003e\n\u003ctd\u003efor solar use only behind the telescope's own certified solar filtration\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eShipping weight\u003c\/td\u003e\n\u003ctd\u003e2.0 lb for LSMINI\/1.25, 001-147 and 001-143; 3.0 lb for SLF2.5; others Not published\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 years from date of purchase, original purchaser, manufacturing and workmanship defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\n\n\u003cp class=\"kt-cta\"\u003e\n  Talk to a Specialist\n  \u003cspan class=\"kt-cta-buttons\"\u003e\n    \u003ca href=\"\/pages\/contact\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eContact Us\u003c\/a\u003e\n    \u003ca href=\"mailto:sales@telescopedepot.com\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eEmail a Specialist\u003c\/a\u003e\n    \u003ca href=\"\/pages\/shipping\" style=\"display:inline-block;padding:12px 26px;border:2px solid var(--kt-primary);border-radius:4px;color:var(--kt-primary);text-decoration:none;font-weight:bold;\"\u003eShipping Info\u003c\/a\u003e\n  \u003c\/span\u003e\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Lunt Solar Systems","offers":[{"title":"1.25 inch Mini Focuser","offer_id":53917567025263,"sku":"LSMINI\/1.25","price":85.99,"currency_code":"USD","in_stock":true},{"title":"1.25 inch Rack and Pinion","offer_id":53917567058031,"sku":"001-147","price":169.99,"currency_code":"USD","in_stock":true},{"title":"1.25 inch Rack and Pinion 10:1","offer_id":53917567090799,"sku":"001-148","price":269.99,"currency_code":"USD","in_stock":true},{"title":"2 inch Rack and Pinion","offer_id":53917567123567,"sku":"001-143","price":219.99,"currency_code":"USD","in_stock":true},{"title":"2 inch with 1.5 inch Travel Draw Tube","offer_id":53917567156335,"sku":"SLF1.5","price":649.99,"currency_code":"USD","in_stock":true},{"title":"2 inch with 2.5 inch Travel Draw Tube","offer_id":53917567189103,"sku":"SLF2.5","price":669.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/7968\/0367\/files\/rack-pinion-focuser.jpg?v=1785527508","url":"https:\/\/telescopedepot.com\/products\/lunt-telescope-focuser","provider":"Telescope Depot","version":"1.0","type":"link"}