{"product_id":"pentax-3-5mm-1-25-inch-telescope-eyepiece-smc-xw-3-5","title":"Pentax 3.5mm 1.25 Inch Telescope Eyepiece SMC XW-3.5","description":"\u003ch2\u003ePentax smc XW 3.5 Eyepiece Summary\u003c\/h2\u003e\n\u003cp\u003eThe Pentax XW 3.5 is the most powerful focal length eyepiece in the XW series with unsurpassed optical clarity and a 70 degree field of view.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-refraction, low-dispersion Lanthanum glass.\u003c\/li\u003e\n\u003cli\u003ePentax Super Multi-Coatings (SMC) on all air\/glass surfaces.\u003c\/li\u003e\n\u003cli\u003eEdge-blackened optics and optimised baffles minimise internal reflections.\u003c\/li\u003e\n\u003cli\u003eOptically corrected for use with focal ratios as fast as f\/4.\u003c\/li\u003e\n\u003cli\u003e20mm eye-relief and twist-up rubber-rimmed eyecups - perfect for spectacle wearers.\u003c\/li\u003e\n\u003cli\u003eChromed barrels threaded to accept filters.\u003c\/li\u003e\n\u003cli\u003eWeatherproof to JIS Class 4 standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"respon-tab\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Structure:\u003c\/td\u003e\n\u003ctd\u003e8 elements, 5 groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length:\u003c\/td\u003e\n\u003ctd\u003e3.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View:\u003c\/td\u003e\n\u003ctd\u003e70 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief:\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Diameter:\u003c\/td\u003e\n\u003ctd\u003e1.25\" (31.7mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Diameter:\u003c\/td\u003e\n\u003ctd\u003e28.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Stop Diameter:\u003c\/td\u003e\n\u003ctd\u003e4.3mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Ring:\u003c\/td\u003e\n\u003ctd\u003eHelicoid type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight \u0026amp; Width:\u003c\/td\u003e\n\u003ctd\u003e5.4\" x 2.4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e14.3 oz. (405g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Pentax","offers":[{"title":"Default Title","offer_id":42327202431073,"sku":"0027075075191","price":279.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Pentax_3.5mm_1.25_Inch_Telescope_Eyepiece.jpg?v=1753269588","url":"https:\/\/carmarcameras.mom\/products\/pentax-3-5mm-1-25-inch-telescope-eyepiece-smc-xw-3-5","provider":"Carmarthen Camera Centre","version":"1.0","type":"link"}