{"product_id":"72-ed-series-40mm-waterproof-eyepiece","title":"72° ED Series 40mm Waterproof Eyepiece","description":"\u003cp\u003e\u003cstrong\u003eThe Explore Scientific 72° ED Series 40mm Waterproof Eyepiece is a deliberate choice for the widest practical view of large sky objects.\u003c\/strong\u003e Its 72° apparent field gives your eye useful context around the target, while extra-low-dispersion glass helps preserve contrast and control color fringing.\u003c\/p\u003e\u003ch2\u003eChoose the 40mm focal length with purpose\u003c\/h2\u003e\u003cp\u003eThis is not a generic upgrade. The 40mm focal length is tuned for the widest practical view of large sky objects, giving you a clear reason to reach for it when conditions and targets call for that view.\u003c\/p\u003e\u003ch2\u003eOptical details that earn their place\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e40mm focal length for the widest practical view of large sky objects\u003c\/li\u003e\n\u003cli\u003e72° apparent field of view\u003c\/li\u003e\n\u003cli\u003eExtra-low-dispersion glass for sharpness, contrast, and more accurate color\u003c\/li\u003e\n\u003cli\u003e2-inch barrel with waterproof construction\u003c\/li\u003e\n\u003cli\u003eLong eye relief for measured, comfortable viewing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAdd the 40mm when you want a defined role in your eyepiece case—not another redundant focal length.\u003c\/strong\u003e SKU: EPWP7240ED-01.\u003c\/p\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":48794191298717,"sku":"EPWP7240ED-01","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2648\/2028\/files\/upload-1786675941597_96780cc4-9633-4a7d-b428-5c9227ad53a9.jpg?v=1786675954","url":"https:\/\/www.stellartelescope.com\/products\/72-ed-series-40mm-waterproof-eyepiece","provider":"Stellar Telescope","version":"1.0","type":"link"}