{"product_id":"william-optics-flt-156-triplet-fluorostar-air-spaced-apo-telescope-a-f156gd-rp37","title":"William Optics FLT 156 Triplet Fluorostar Air-Spaced APO Gold OTA - A-F156GD-RP37","description":"\u003ch3 style=\"text-align: center;\"\u003eWilliam Optics FLT 156 Triplet Fluorostar Air-Spaced\u003cbr\u003e APO OTA - Gold\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e156 mm Aperture f\/7.8 Imaging Refractor OTA\u003c\/li\u003e\n\u003cli\u003eTriplet w\/ FPL-53 and Lanthanum glasses for Apochromatic performance\u003c\/li\u003e\n\u003cli\u003eCovers full frame imaging circle (44 mm)\u003c\/li\u003e\n\u003cli\u003eCamera Format: APS-C, Full Frame\u003c\/li\u003e\n\u003cli\u003eTwo-speed 3.7\" Rack \u0026amp; Pinion Focuser\u003c\/li\u003e\n\u003cli\u003eColor: Gold\u003c\/li\u003e\n\u003cli\u003eIncludes 3 Mounting rings and Losmandy style dovetail\u003c\/li\u003e\n\u003cli\u003eWeight: 17 kg\u003c\/li\u003e\n\u003cli\u003eIncludes Interchangable Camera T-Mount\u003c\/li\u003e\n\u003cli\u003eCompatible With: WO Flattener Lenses\u003c\/li\u003e\n\u003cli\u003eIncludes Dust Cover with built-in Bahtinov Mask\u003c\/li\u003e\n\u003cli\u003eAdjustable Dew Shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe William Optics Fluorostar 156 APO OTA is a high quality Apochromatic Imaging and visual use OTA with an aperture of 156 mm and a focal length of 1217 mm or an f-ratio of f\/7.8. This Fluorostar 156 APO OTA can also be used with an interchangable camera mounting system, with various T-mounts for cameras (not included).\u003c\/p\u003e\n\u003cp\u003eThe William Optics FLT 156 Triplet Fluorostar OTA utilizes a steel objective cell for its 156 mm lens. This steel cell has proven to be less subject to pinching the objective due to changes in ambient temperature when compared with a large aluminum cell. This means your FLT-FPL-53 and Lanthanum objective will remain unconstrained and in good alignment during sudden changes of temperature, to continue to provide the APO performance you expect. This Fluorostar 156 APO OTA from William Optics is provided in Gold color accents with a white tube.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e Photos of this model OTA are not available. The photos show the model in Blue color for illustration purposes, only.\u003c\/p\u003e\n\u003cp\u003eIf you wish to take great astro-images with a high quality APO refractor, this William Optics Fluorostar 156 APO OTA is a great way to achieve your imaging goals. Its FPL-53 glass air-spaced Triplet lens design provides images with extreme sharpness, clear details, with APO grade color correction.\u003c\/p\u003e\n\u003cp\u003eIncludes a Mounting Base dovetail (Losmandy type), 3.7\" Dual-speed Rack and Pinion Focuser, three clamshell type Mounting Rings for the OTA, and the new innovative Bahtinov Mask cover. The newly designed three-piece ring and Losmandy base system provides better support for your large refractor OTA with no chance for flexure of the tube, and it provides a great handle and built-in base for other Vixen-base accessories.\u003c\/p\u003e\n\u003cp\u003eIntroducing a first innovative feature in the industry: Now this Fluorostar 156 APO OTA from William Optics comes standard with a dust cover that has a built-in, clear Bahtinov Mask for perfect focusing every time. Simply remove the flat front cover plate, leaving the dust cover cuff in place on the OTA. Point the OTA at a bright star, and focus carefully. When the bright central diffraction spike looks exactly centered between the other two spikes forming an \"X\", then your OTA is in exact focus for stars. Remove the dust cover cuff carefully from the objective end of the OTA, and you are ready to image.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Number:\u003c\/td\u003e\n\u003ctd\u003eA-F156GD-RP37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Type:\u003c\/td\u003e\n\u003ctd\u003eTriplet Apochromatic Refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Aperture:\u003c\/td\u003e\n\u003ctd\u003e156 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Cell:\u003c\/td\u003e\n\u003ctd\u003eUses a Steel objective cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length:\u003c\/td\u003e\n\u003ctd\u003e1217 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio:\u003c\/td\u003e\n\u003ctd\u003ef\/7.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser:\u003c\/td\u003e\n\u003ctd\u003e3.7\" Dual-Speed Rack \u0026amp; Pinion Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Format:\u003c\/td\u003e\n\u003ctd\u003eFull Frame\/APS-C Image Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Color:\u003c\/td\u003e\n\u003ctd\u003eGold\/White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length:\u003c\/td\u003e\n\u003ctd\u003e1120 mm (Fully Retracted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length:\u003c\/td\u003e\n\u003ctd\u003e1330 mm (Fully Extended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Weight:\u003c\/td\u003e\n\u003ctd\u003e17 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting:\u003c\/td\u003e\n\u003ctd\u003eLosmandy Type Dovetail in same color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible With:\u003c\/td\u003e\n\u003ctd\u003eW.O. Flatteners (NOT Included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Mount:\u003c\/td\u003e\n\u003ctd\u003eInterchangable T-Mount Style for Compatibility\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Rings:\u003c\/td\u003e\n\u003ctd\u003eNone, T-Rings are available as optional accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder and Finder Rings:\u003c\/td\u003e\n\u003ctd\u003eNone, These are available as optional accessories\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":31855878701169,"sku":"WIL-A-F156GD-RP37","price":8007.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/FLT156-1_4a60ea19-1dc3-4853-b543-6deb43a4c221.jpg?v=1776459325","url":"https:\/\/khanscope.com\/en-fr\/products\/william-optics-flt-156-triplet-fluorostar-air-spaced-apo-telescope-a-f156gd-rp37","provider":"Khan Scope Centre","version":"1.0","type":"link"}