{"product_id":"explore-scientific-52-series-25mm-waterproof-eyepiece","title":"52° Series 25mm Waterproof Eyepiece","description":"\u003c!--start tab--\u003e\n\u003cp\u003eLong considered the “standard” eyepiece that is often supplied with telescopes that are sold by various suppliers, the 25mm focal length category is perhaps the most used eyepiece in the world. Like the 20mm, these eyepieces are great for binoviewer devices, and the 25mm is probably the longest focal length of the mid-power range eyepieces before you get into longer focal lengths.\u003c\/p\u003e\n\u003cp\u003eExplore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality, eye relief and value versus a comparably priced Plossl.\u003c\/p\u003e\n\u003cp\u003eAnother great benefit of these eyepieces is the excellent contrast and ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.\u003c\/p\u003e\n\u003c!--end tab--\u003e\u003c!--start tab--\u003e\n\u003ch1 id=\"video\"\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/-FufDZ0aDAQ\"\u003e\u003c\/iframe\u003e \u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/pW6RMfhU_Co\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c!--end tab--\u003e\u003c!--start tab--\u003e\n\u003ch1 id=\"specs\"\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eItem Number\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eEPWP5225–01\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eFocal Length\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e25mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eLength\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e67.7mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eWeight\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e43mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eWeight\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e181.4 grams; 6.4 oz.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eBarrel Size\/Type\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e1.25\" O.D. \/ Double Taper\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eEye Relief\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e16.4mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eField Stop Diameter\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e18.2mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eCoatings\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eEMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eLens Elements\/ Groups\u003c\/span\u003e \u003cspan class=\"speccell\"\u003e4 Elements in 2 Groups; Edge Blackened\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eFilter Thread\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eFits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eWaterproof\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eO-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eEyecup\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eRemovable Flip-Down Style Soft Silicone Rubber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eLens Caps\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eSlide-on Top and Bottom\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eMaterials\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eOptical Glass; Aluminum; Steel; Silicone Rubber\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spanrow\"\u003e\n\u003cspan class=\"speccell speccell-left\"\u003eMarkings\u003c\/span\u003e \u003cspan class=\"speccell\"\u003eLaser Engraved: Focal Length; Series; Serial Number; Brand\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!--end tab--\u003e\u003c!--start tab--\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45643730944241,"sku":"EPWP5225-01","price":59.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/5711\/6312\/files\/EPWP5225-01_3_4417e5ca-ac5a-4083-b6a6-4e1d4ca7e3b1.jpg?v=1736428900","url":"https:\/\/villohome.com\/products\/explore-scientific-52-series-25mm-waterproof-eyepiece","provider":"Villohome","version":"1.0","type":"link"}