{"product_id":"sharpstar-140ph-3-0-73x-focal-reducer-140ph-red","title":"SharpStar 0.73X Focal Reducer for 140PH - 3\" - 140PH-RED","description":"\u003ch3 style=\"text-align: center;\"\u003eSharpStar 140PH - 3\" - 0.73X Focal Reducer\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e3\" - 0.73X Focal Reducer for the 140PH Apo Refractor\u003c\/li\u003e\n\t\u003cli\u003eFull frame Focal Reducer\u003c\/li\u003e\n\t\u003cli\u003eFocal Ratio Result:  f\/4.8 for the 140PH\u003c\/li\u003e\n\t\u003cli\u003eForm Factor:  Triplet Lens\u003c\/li\u003e\n\t\u003cli\u003eImage Circle Result:  44 mm\u003c\/li\u003e\n\t\u003cli\u003eBack Focus:  The standard 55 mm Back Focus\u003c\/li\u003e\n\t\u003cli\u003eTotal Weight:  Only  0.9 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThis SharpStar 140PH 3\" - 0.73X Focal Reducer is ideal for use with the SharpStar model 140PH Refractor telescope for doing full-frame imaging with DSLR or other electronic cameras. The new 3 inch full frame reducer from SharpStar, for the 140PH APO is made of high quality metal, with a beautiful design, and it's simple to use. The focal ratio is reduced from the original f\/6.5 to f\/4.8, combined with your existing 140PH APO to provide sharp images and bright peripheral stars, It's an indispensable accessory for astro-imaging enthusiasts.\n\u003c\/p\u003e\n\n\u003cp\u003e\nA triplet air-spaced design, including a 360° rotator and M48 thread.\nFully considering the needs of pro users, the back focus including rotator is the standard 55 mm. The user can also unscrew the rotator if desired, to make the back focus 105 mm. The front thread is M88 X 1 mm, which is directly connected to the 140PH 4-inch focuser adapter, making it a professional astro-imaging combination. The product is fully optimized to meet your stringent requirements for image quality.\n\u003c\/p\u003e\n\n\u003cp\u003e\nIf you are using the SharpStar 140PH APO Refractor telescope for visual observations and are now ready to embark upon astro-imaging work, this is the ideal Focal Reducer you will want and appreciate.\n\u003c\/p\u003e\n\n\u003ch3 style=\"text-align: center;\"\u003eSpecifications:\u003c\/h3\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eModel:  140PHSR\u003c\/li\u003e\n\t\u003cli\u003eFull frame Focal Reducer Optics\u003c\/li\u003e\n\t\u003cli\u003eDesigned for use with 140PH Apo Refractor\u003c\/li\u003e\n\t\u003cli\u003eSize:  3\"\u003c\/li\u003e\n\t\u003cli\u003eForm Factor:  Triplet Lens\u003c\/li\u003e\n\t\u003cli\u003eFocal Ratio Result:  f\/4.8\u003c\/li\u003e\n\t\u003cli\u003eImage Circle Result:  44 mm\u003c\/li\u003e\n\t\u003cli\u003eBack Focus:  55 mm\u003c\/li\u003e\n\t\u003cli\u003eTotal Weight:  0.9 kg\u003c\/li\u003e\n\t\u003cli\u003eLens Coatings:  Full Multi-layer coatings\u003c\/li\u003e\n\t\u003cli\u003eLength:  106 mm\u003c\/li\u003e\n\t\u003cli\u003eOuter Diameter:  88 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"SharpStar","offers":[{"title":"Default Title","offer_id":31805918183537,"sku":"SHA-140PH-RED","price":394.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/2766\/products\/140PHSR.jpg?v=1776459112","url":"https:\/\/khanscope.com\/en-fr\/products\/sharpstar-140ph-3-0-73x-focal-reducer-140ph-red","provider":"Khan Scope Centre","version":"1.0","type":"link"}