{"product_id":"daystar-flat-cap-imaging-diffuser","title":"Daystar Flat Cap Imaging Diffuser","description":"\u003ch2\u003eDaystar Flat Cap Imaging Diffuser\u003c\/h2\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: black; font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003eThe DayStar\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eFlatCap\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eis a Gaussian diffuser that is\u003cspan\u003e \u003c\/span\u003e\u003cu\u003etemporarily\u003c\/u\u003e\u003cspan\u003e \u003c\/span\u003einstalled over the front of your telescope when taking flat field reference images. By strongly blurring the Sun, the only details you will see in the reference image are from defects in your imaging train that can be removed in software.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: black; font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular;\"\u003e\u003cimg src=\"https:\/\/www.daystarfilters.com\/FlatCap\/BDA.jpg?width=700\" width=\"925\" height=\"281\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv align=\"left\"\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Verdana,Arial; font-size: small;\"\u003eNote: Newton’s Rings or intereference fringes will not be corrected by flat fields; use our Interference Eliminator adapter to remove these before performing flat field correction.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Verdana,Arial; font-size: small;\"\u003e\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular; font-size: small;\"\u003e•\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"color: #98292f; font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular; font-size: small;\"\u003e\u003cb\u003eWarning:  \u003c\/b\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cb\u003eThe Daystar Flat Cap is NOT a solar filter\u003c\/b\u003e.\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular; font-size: small;\"\u003eNot for use in a concentrated beam, FlatCap must be the first component to encounter light.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial,Helvetica,Geneva,Swiss,SunSans-Regular; font-size: small;\"\u003eThis is a not a solar filter, eye or equipment damage will result unless used in combination with a safe solar filter or solar telescope.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"font-family: Verdana,Arial; font-size: small;\"\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Verdana,Arial; font-size: small;\"\u003eFlatCap is sold by inside diameter of the mounting cap. Measure the outside diameter of the frontmost component of your telescope or ERF, and then round up to the next larger size. For example, a telescope with a 160mm front should use model FC170, and then optionally install the included felt pads for a secure fit.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Verdana,Arial; font-size: small;\"\u003e\u003cb\u003eConstruction:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eSpun Aluminum mounting ring with polymer diffuser\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eIntensity distribution:\u003c\/b\u003e\u003cspan\u003e Gaussian\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eDivergence angle:\u003c\/b\u003e\u003cspan\u003e 4 degrees FWHM\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eExposure time adjustment factor:\u003c\/b\u003e\u003cspan\u003e 100x longer\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eMaximum field of view:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e1 degree with Sun backlight\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eWavelength transmission range:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e350-800nm\u003c\/span\u003e\u003cbr\u003e\u003cb\u003eOperating temperature:\u003c\/b\u003e\u003cspan\u003e -10 to 100°C (14-212°F)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ctable width=\"356\" style=\"height: 247px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC90\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 80-89mm tube OD or 63mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC100\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 90-99mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC110\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 100-109mm tube OD or 80mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC120\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 110-119mm tube OD or 90mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC130\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 120-129mm tube OD or 100mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC140 \u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 130-139mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC150 \u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 140-149mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC160 \u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 150-159mm tube OD or 130mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC170\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 160-169mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC180 \u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 170-179mm tube OD or 150mm ERF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC190\u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 180-189mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"height: 19px; width: 119.184px;\"\u003eFC210  \u003c\/td\u003e\n\u003ctd style=\"height: 19px; width: 412.865px;\"\u003efits 190-209mm tube OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eIn the Box\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eFlat cap, at selected size \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"text-align: left;\"\u003eWarranty \u0026amp; Manuals\u003c\/h3\u003e\n\u003cp style=\"text-align: left;\"\u003eDaystar Warranty\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cb\u003eDaystar Recommends SharpCap imaging software\u003c\/b\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Daystar","offers":[{"title":"80-89mm OD or 63mm ERF","offer_id":52184007147749,"sku":"gcy1787937563388","price":64.26,"currency_code":"USD","in_stock":true},{"title":"90-99mm OD","offer_id":52184007180517,"sku":"qky1787937563389","price":67.64,"currency_code":"USD","in_stock":true},{"title":"100-109mm OD or 80mm ERF","offer_id":52184007213285,"sku":"qdr1787937563390","price":50.73,"currency_code":"USD","in_stock":true},{"title":"110-119mm OD or 90mm ERF","offer_id":52184007246053,"sku":"dmn1787937563391","price":67.64,"currency_code":"USD","in_stock":true},{"title":"120-129mm OD or 100mm ERF","offer_id":52184007278821,"sku":"nln1787937563392","price":60.88,"currency_code":"USD","in_stock":true},{"title":"130-139mm OD","offer_id":52184007311589,"sku":"uoe1787937563393","price":65.95,"currency_code":"USD","in_stock":true},{"title":"140-149mm OD","offer_id":52184007344357,"sku":"apu1787937563394","price":65.95,"currency_code":"USD","in_stock":true},{"title":"150-159mm OD or 130mm ERF","offer_id":52184007377125,"sku":"chi1787937563395","price":73.17,"currency_code":"USD","in_stock":true},{"title":"160-169mm OD","offer_id":52184007409893,"sku":"rfd1787937563396","price":78.05,"currency_code":"USD","in_stock":true},{"title":"170-179mm OD or 150mm ERF","offer_id":52184007442661,"sku":"udl1787937563397","price":75.12,"currency_code":"USD","in_stock":true},{"title":"180-189mm OD","offer_id":52184007475429,"sku":"qfu1787937563398","price":72.19,"currency_code":"USD","in_stock":true},{"title":"190-209mm OD","offer_id":52184007508197,"sku":"iiz1787937563399","price":63.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4561\/8405\/files\/daystar-flat-cap-imaging-diffuser_1.png?v=1787937568","url":"https:\/\/perovia.shop\/products\/daystar-flat-cap-imaging-diffuser","provider":"My Store","version":"1.0","type":"link"}