{"product_id":"vixen-optics-extender-ph-kit-telescope-accessory-for-r200ss","title":"Vixen Optics Extender PH Kit Telescope Accessory for R200SS","description":"\u003cp\u003eThe Vixen Extender PH is a Japanese-made focal extender for Newtonian telescopes. It works with the parabolic mirror to correct coma, turning the R200SS reflector into an f\/5.6 astrograph.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIt extends the focal length by 1.4 times while correcting coma aberrations\u003c\/li\u003e\n\u003cli\u003eA wide 44mm image circle covers a full-frame imaging sensor\u003c\/li\u003e\n\u003cli\u003eUltimate light transmission AS coatings for extremely high contrast images\u003c\/li\u003e\n\u003cli\u003eStunningly sharp images if used with the R200SS\u003c\/li\u003e\n\u003cli\u003eUsable as a Barlow Lens\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification:\u003c\/strong\u003e 1.4X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal length:\u003c\/strong\u003e R200SS: 800mm (F4) to 1120mm (F5.6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical coatings:\u003c\/strong\u003e AS coatings (More than 99.9% light transmission per surface)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e 4 elements in 3 groups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage circle:\u003c\/strong\u003e 44mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread diameter and thread pitch:\u003c\/strong\u003e M56mm, 0.75mm (male), or fits to 50.8mm visual back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter size:\u003c\/strong\u003e 48mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual observing:\u003c\/strong\u003e Possible with an optional Eyepiece adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions and weight:\u003c\/strong\u003e 56mm x 128mm long, 245 g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Vixen","offers":[{"title":"Default Title","offer_id":54819598729500,"sku":"VX37238","price":940.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/0835\/1516\/files\/vx37238.tag.0.jpg?v=1793692419","url":"https:\/\/www.magnumsports.com.au\/products\/vixen-optics-extender-ph-kit-telescope-accessory-for-r200ss","provider":"Magnum Sports","version":"1.0","type":"link"}