{"product_id":"explore-scientific-bt-150mm-ed-giant-binocular-with-u-mount-and-tripod","title":"Explore Scientific BT 150mm ED Giant Binocular with U-Mount and Tripod","description":"\u003cp\u003eThe BT 150mm ED is a six-inch binocular telescope, two 150mm FK-61 ED doublets working at 840mm f\/5.6, and Explore Scientific designs it for mounted use only. This package pairs it with the U-Mount and field tripod Explore Scientific built for it, \u003cstrong\u003erated to 110 lb (50 kg)\u003c\/strong\u003e against the binocular's 41.2 lb, so everything the first night needs arrives together.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch5 id=\"key-features\"\u003eKey Features\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo 150mm FK-61 ED doublets.\u003c\/strong\u003e Each objective is an air-spaced doublet with FK-61 ED glass, which keeps false color down around bright stars, the Moon and the planets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e840mm at f\/5.6, 42x out of the box.\u003c\/strong\u003e The supplied 20mm eyepieces give 42x over a 1.5-degree true field, wide enough for long Milky Way star fields and the large open clusters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA U-Mount and tripod built for this binocular.\u003c\/strong\u003e Explore Scientific purpose-built the U-Mount and tripod to give the BT 150 the strength, stability and smooth movement it needs. The fork head and its field tripod come as one matched set, so there is no head-to-tripod fit to work out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e110 lb (50 kg) load rating\u003c\/strong\u003e, about 2.7 times the binocular's weight, so the mount works well inside its limit rather than near it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMD coatings in an argon-filled magnesium chassis.\u003c\/strong\u003e Enhanced multilayer deposition coatings on the optics, sealed in an argon-filled magnesium alloy body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual eyepiece focus.\u003c\/strong\u003e Each side focuses on its own, so you set your diopter once, and the interpupillary distance adjusts from 62 to 76mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDew shields and a sighting device.\u003c\/strong\u003e Extendable dew shields cover the objectives, and the carry handle has a sighting device for aiming.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5 id=\"ideal-for\"\u003eIdeal For\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-eyed deep-sky observing.\u003c\/strong\u003e Explore Scientific notes that viewing with both eyes is more natural and comfortable, with less eye fatigue over a long session. Large open clusters, bright nebulae and the Milky Way at 42x are where this instrument earns its keep.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent and semi-permanent setups\u003c\/strong\u003e that want the mount settled from the first night. This is an instrument for a deck, patio, pier or observatory, not one to grab and go, so choose its observing site before it arrives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-range daytime viewing\u003c\/strong\u003e, where 150mm of aperture holds detail at distance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch5 id=\"accessories-compatibility\"\u003eAccessories \u0026amp; Compatibility\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces.\u003c\/strong\u003e The holders take standard 1.25-inch eyepieces, used in matched pairs. Magnification is 840 divided by the eyepiece focal length, so a matched pair of 9mm eyepieces gives about 93x, and Explore Scientific rates the binocular for excellent image results up to 100x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold separately.\u003c\/strong\u003e Both parts are also sold on their own: the \u003ca href=\"\/products\/explore-scientific-bt-150mm-ed-giant-binocular-01-14260\"\u003eBT 150mm ED Giant Binocular\u003c\/a\u003e and the \u003ca href=\"\/products\/explore-scientific-u-mount-and-tripod-for-bt-150-giant-binoculars-01-14310\"\u003eU-Mount and Tripod for BT-150\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":67651486122158,"sku":"ES-BT150ED-01-14310","price":10499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0620\/2494\/1742\/files\/giant_bino_bundle.jpg?v=1791494829","url":"https:\/\/astrotelescopium.com\/products\/explore-scientific-bt-150mm-ed-giant-binocular-with-u-mount-and-tripod","provider":"AstroTelescopium","version":"1.0","type":"link"}