{"product_id":"svbony-sv137-2x-barlow-lens-1-25-with-t-thread","title":"SVBONY SV137 2x Barlow Lens 1.25\" with T-Thread","description":"\u003cp\u003eThe \u003cstrong\u003eSVBONY SV137 2× Barlow Lens with T-thread\u003c\/strong\u003e increases the magnification of a compatible 1.25″ eyepiece and adds a threaded connection for camera adapters. This is the \u003cstrong\u003eW9106B 2× M42 version\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/w9106-3_20250806141232_6159_600x600_0a27462b-83c9-431e-bbec-a60538cd5bbb.jpg?v=1793903945\" alt=\"SVBONY SV137 W9106B 2x 1.25 inch Barlow lens with M42 T-thread\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\u003ch2\u003eGet more from your existing eyepieces\u003c\/h2\u003e\n\u003cp\u003ePlace the Barlow between your telescope’s 1.25″ eyepiece holder and eyepiece, then refocus. Nominal 2× amplification lets one eyepiece provide a second magnification: for example, a 20 mm eyepiece behaves approximately like a 10 mm eyepiece in the same telescope.\u003c\/p\u003e\n\u003cp\u003eHigher magnification is most useful when the target, telescope and atmospheric conditions support it. Start at low power, centre your target and increase magnification only while the view remains sharp.\u003c\/p\u003e\n\u003ch2\u003eOptics and eyepiece retention\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFully multi-coated optics help reduce reflections at the lens surfaces.\u003c\/li\u003e\n\u003cli\u003eBlackened lens edges and a dark interior help control scattered light.\u003c\/li\u003e\n\u003cli\u003eAn internal brass compression ring holds the eyepiece while helping protect its barrel from screw marks.\u003c\/li\u003e\n\u003cli\u003eA metal body and rubber grip ring provide a practical accessory for regular observing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eT-thread connection for imaging\u003c\/h2\u003e\n\u003cp\u003eThe male M42 T-thread provides an attachment point for compatible camera adapters. A suitable camera-specific T-ring or adapter is required and is sold separately. Check your camera connection and available focus travel before ordering; a threaded connection alone does not guarantee that every camera and telescope combination will reach focus.\u003c\/p\u003e\n\u003cp\u003eThe stated 2× factor is nominal. In imaging arrangements, the effective amplification can change with the distance between the Barlow optics and camera sensor.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand \/ model\u003c\/th\u003e\n\u003ctd\u003eSVBONY SV137\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer SKU\u003c\/th\u003e\n\u003ctd\u003eW9106B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVersion\u003c\/th\u003e\n\u003ctd\u003e2× with M42 T-thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTelescope \/ eyepiece fitting\u003c\/th\u003e\n\u003ctd\u003e1.25″\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptical coating\u003c\/th\u003e\n\u003ctd\u003eFully multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEyepiece retention\u003c\/th\u003e\n\u003ctd\u003eBrass compression ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eWhat you need\u003c\/h2\u003e\u003cp\u003eA telescope with a compatible 1.25″ eyepiece holder and sufficient focus travel, plus a 1.25″ eyepiece for visual use. Telescope, eyepiece, camera and camera adapters are sold separately.\u003c\/p\u003e\n\u003cp\u003eExplore our \u003ca href=\"\/collections\/svbony-barlows\"\u003eSVBONY Barlow lenses\u003c\/a\u003e and \u003ca href=\"\/collections\/barlows-extenders\"\u003eBarlow lenses and focal extenders\u003c\/a\u003e.\u003c\/p\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":55726429241720,"sku":"W9106B","price":14.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/w9106-3_20250806141232_6159_600x600_0a27462b-83c9-431e-bbec-a60538cd5bbb.jpg?v=1793903945","url":"https:\/\/www.darkclearskies.co.uk\/products\/svbony-sv137-2x-barlow-lens-1-25-with-t-thread","provider":"Dark Clear Skies ","version":"1.0","type":"link"}