{"title":"Howie Glatter BLUG and TuBLUG Newtonian Collimators","description":"\u003cp\u003eHowie Glatter BLUG and TuBLUG Newtonian collimators work with a Glatter laser collimator for the Barlowed laser method of aligning a Newtonian primary mirror. The beam is spread over the primary, and the shadow of the mirror's center spot is projected back onto a target where you center it.\u003c\/p\u003e\u003cp\u003eThe BLUG fits 2\" focusers, and the TuBLUG comes in 1.25\" and 2\" versions. The method is less affected by focuser play than reading a plain laser return dot.\u003c\/p\u003e","products":[{"product_id":"howie-glatter-blug-newtonian-collimator-2","title":"Howie Glatter BLUG Newtonian Collimator - 2\"","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan\u003eUser Instructions\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eIn the past, Howie Glatter made separate Barlowed collimation plugs for Feather Touch which he called the FLUG and non-Feather Touch in which he called the BLUG.  Starlight Instruments made a slight design change which now allows the same Barlowed collimation plug on both Feather Touch and Non-Feather Touch focusers.  We now call this part the Uni-Blug and now is allows astromers with multiple scopes to use the same part on their scopes.\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003cspan\u003eThe Uni-Blug is used together with a regular single beam laser collimator to adjust the angular alignment of the primary mirror of a Newtonian telescope.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\"\"The Uni-Blug is the newest Newtonian collimation accessory (Blug is short for Barlowed collimation plug). The Blug is used together with a regular laser collimator in single beam mode to perform Barlowed laser Newtonian primary mirror alignment. The Blug does not attach to the collimator like my regular self-Barlow attachment. It is inserted in the inner end of the focuser drawtube, inside the tube or upper cage, and it is retained by an O-ring in the Blug base. It has a matte-white 45 degree face as a screen, and a small anti-reflection coated Barlow lens mounted in a central axial hole. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003cspan\u003eFeathertouch focusers have a 2\"\" filter thread at the inner end of the drawtube, with a large relief diameter past the thread. In order to fit this focuser, all Uni-Blugs are supplied with an adapter o-ring which fits on the end of the Blug and acts as a \"\"spacer\"\" so that the Feathertouch focuser threads will engage the Blug retention o-ring. \u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003cspan\u003e\u003cspan\u003eOn a truss tube dob, the 45 degree face of the Blug is easily visible from primary adjustment position. You watch the target shadow move on the Blug face as you turn the primary adjustment screws. With a solid tube scope, the Blug can be turned 180 degrees to face the front, and the target shadow will be seen easily from the front of the scope. I supply a shim kit with the Blug for use if the drawtube inner end is larger than the eyepiece nominal size. The Blug extends 3\/8\"\" into the back end of the drawtube, so the laser collimator in the eyepiece position must not extend forward far enough to interfere with the Blug, or it will not seat properly. After the secondary mirror angular alignment is adjusted with the single beam laser collimator, just insert the Blug into the back end of the drawtube, and adjust the primary mirror alignment to center the collimation target shadow on the Blug face.\"\" \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e Easy... Precise... And Accurate. \u003cspan\u003e\u003c\/span\u003eWhat more could you ask?\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKnown To Fit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNewtonian 2\"\" Focusers\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298335005,"sku":"SI-UNI-BLUG","price":182.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-2-inch-Newtonian-Collimator-SI-UNI-BLUG-1__12706.1596314048.1280.1280.jpg?v=1684340082"},{"product_id":"howie-glatter-tublug-2-newtonian-collimator","title":"Howie Glatter TuBLUG-2\" Newtonian Collimator","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan\u003eUser Instructions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eThe Howie Glatter TuBLUG is inserted into the \u003c\/b\u003e\u003cspan\u003e\u003cb\u003efocusers' \u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e\u003cb\u003edraw tube in which the laser collimator then attaches to the otherside of the TuBLUG\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eMatte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eThe Howie Glatter TuBLUG is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e\u003cb\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003eHowie Glatter 2\"\" TuBLUG Newtonian Laser Collimator\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest - but in demand as the finest available on today's market. \u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298760989,"sku":"SI-TUBLUG2","price":336.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-TuBLUG-2-inch-Newtonian-Collimator-SI-TUBLUG2-1__10047.1596314052.1280.1280.jpg?v=1684339911"},{"product_id":"howie-glatter-tublug-1-25-newtonian-collimator","title":"Howie Glatter TuBLUG-1.25\" Newtonian Collimator","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUser Instructions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eUse with a regular laser collimator in single beam mode to perform barlowed laser Newtonian primary mirror alignment on closed tube reflectors.\u003cb\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eThe Howie Glatter TuBLUG is inserted into the focuser in which the laser collimator then attaches to the otherside of the TuBLUG\u003cb\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eMatte-white 45 degree face and anti-reflection coated Barlow lens mounted in a central axial hole.\u003cb\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003e·\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cb\u003eThe Howie Glatter TuBLUG is easily visible from primary adjustment position and can be turned 180 degrees to face the front and has a cut-out.\u003cb\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003eHowie Glatter 2\"\" TuBLUG Newtonian Laser Collimator\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eWhen it comes to lasers and collimation, one of the most trusted names in the business is guru Howie Glatter. His uncompromising quality and dedication to above average products, not only put his name above the rest - but in demand as the finest available on today's market. \u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298826525,"sku":"SI-TUBLUG1.25","price":224.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-TuBLUG-1-25-inch-Newtonian-Collimator-SI-TUBLUG1.25-1__59530.1596314052.1280.1280.jpg?v=1684339913"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/howie-glatter-blug-and-tublug-newtonian-collimators.oembed","provider":"David Astro","version":"1.0","type":"link"}