{"product_id":"masuyama-2-ortho-plossl-45-mm-eyepiece-53-mop-4553","title":"Masuyama 2\" Ortho Plössl 45 mm Eyepiece 53° (MOP-4553)","description":"\u003ch1\u003eMasuyama 2\" Ortho Plössl 45 mm Eyepiece 53°\u003c\/h1\u003e\n\u003cdiv\u003eMasuyama eyepieces, rigorously designed and manufactured in Japan with the highest quality standards, have always been a benchmark for discerning visual amateur astronomer.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003eMasuyama eyepieces are known for their clear and high contrast imaging and velvet black background. \u003cspan\u003e Masuyama eyepieces incorporate a five-element \"hybrid Ortho-Plossl\" design. They have much better performance towards the edge of the field and improved color performance compared to Plossls and other competing designs. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe good contrast of these high-end eyepieces is achieved with a special cut, internal diaphragms and the best possible internal blackening. Due to the elaborate lens design, the eyepieces get by with only 5 elements, with good correction at the same time.\u003c\/p\u003e\n\u003cp\u003eThe eyepieces were developed by renowned optician Dr. Masuyama. Among other things, Dr. Masuyama designed an eyepiece with a focal length of 100 mm, which was used on the historic 60-inch telescope at Mount Wilson Observatory in California. We are pleased to offer you these legendary eyepieces with the latest glass and coating technology.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFocal length 45 mm\u003c\/li\u003e\n\u003cli\u003eApparent field of view 53°\u003c\/li\u003e\n\u003cli\u003eRubber eyecup for comfortable support of the eye or glasses\u003c\/li\u003e\n\u003cli\u003e2\" barrel without safety groove with filter thread\u003c\/li\u003e\n\u003cli\u003e5-element design\u003c\/li\u003e\n\u003cli\u003eLatest glass types and multi-layer coating technology\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"data-table\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"25%\"\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr class=\"odd\"\u003e\n\u003ctd class=\"spec-name\"\u003eField of view\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e53°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003ctd class=\"spec-name\"\u003eLenses \/ groups\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e5 \/ 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003ctd class=\"spec-name\"\u003eBarrel size \/ Filter thread\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e2\" with filterthread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003ctd class=\"spec-name\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e17.9 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003ctd class=\"spec-name\"\u003eEye relief\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003ctd class=\"spec-name\"\u003eFocal length\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003ctd class=\"spec-name\"\u003eCoating\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003emulticoating on all glass-air-surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003ctd class=\"spec-name\"\u003eField stop\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"odd\"\u003e\n\u003ctd class=\"spec-name\"\u003eLength\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e128mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"even\"\u003e\n\u003ctd class=\"spec-name\"\u003eLargest diameter\u003c\/td\u003e\n\u003ctd class=\"spec-value\"\u003e71mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEyepiece\u003c\/li\u003e\n\u003cli\u003eLens Caps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003eMasuyama 1-Year Warranty\u003c\/p\u003e","brand":"Masuyama","offers":[{"title":"Default Title","offer_id":67635035439333,"sku":"MAS-MOP-4553","price":615.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/0439313_masuyama-2-45-mm-53-gesichtsfeld-made-in-japan.jpg?v=1791489880","url":"https:\/\/astronomyplus.com\/products\/masuyama-2-ortho-plossl-45-mm-eyepiece-53-mop-4553","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}