{"product_id":"astromania-zoom-eyepiece-fmc-zoom-7-to-21mm-telescope-eyepiece-1-25-inch-size-7-21mm","title":"Astromania Zoom Eyepiece, FMC Zoom 7 to 21mm Telescope Eyepiece 1.25 Inch - size: 7-21mm","description":"\u003ch3\u003eAbout this item\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eA twist of the zoom eyepiece housing changes focal length from 21 mm to 7 mm providing a variety of viewing magnification powers; excellent contrast and sharpness making the zoom also of interest for planetary observing\u003c\/li\u003e\n\u003cli\u003eExceptionally long 16 mm to 33 mm eye relief range allows eyeglass wearers to enjoy the entire view while still wearing their corrective lenses without vignetting; the Zoom eyepiece lets you change magnification power without physically changing eyepieces\u003c\/li\u003e\n\u003cli\u003eApparent field of view is 30 degree at 21 mm and 47 degree at 7 mm; rubber traction ring ensures a good grip; the 1.25 inch barrel is threaded for filters; actual magnification range will depend on the focal length of your telescope\u003c\/li\u003e\n\u003cli\u003eEyepiece consists of four elements which are coated with anti-reflection coatings for clear and high contrast views; the large eye lens coupled with the long eye relief means the Zoom provides particularly good viewing comfort; the eyecup can folded down\u003c\/li\u003e\n\u003cli\u003eComfortable viewing at every focal length setting superior to most fixed focal length eyepieces; especially at the shorter focal length settings; precise and stepless adjustment from 7mm to 21mm; a nice value in a quality zoom eyepiece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Astromania\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel Name:\u003c\/strong\u003e 8-24mm 412\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye Piece Lens Description:\u003c\/strong\u003e Zoom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eObjective Lens Diameter:\u003c\/strong\u003e 21 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Mount Description:\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocus Type:\u003c\/strong\u003e Manual Focus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinderscope:\u003c\/strong\u003e Reflex\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Weight:\u003c\/strong\u003e 5.93 ounces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Devices:\u003c\/strong\u003e Camera\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens Coating Description:\u003c\/strong\u003e Multi-Coated\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Astromania","offers":[{"title":"Default Title","offer_id":48209652285591,"sku":"B0719FL3K4-size-7-21mm","price":86.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/1032\/2327\/files\/414osneJ9TL.jpg?v=1788705399","url":"https:\/\/tinkervanta.com\/products\/astromania-zoom-eyepiece-fmc-zoom-7-to-21mm-telescope-eyepiece-1-25-inch-size-7-21mm","provider":"TinkerVanta","version":"1.0","type":"link"}