{"product_id":"heliopan-hasselblad-bay-70-medium-dark-yellow-filter-12-schott-glass-for-b-w-photography","title":"Heliopan Hasselblad Bay 70 Medium Dark Yellow Filter (12) Schott Glass for B+W Photography","description":"\u003cp data-start=\"0\" data-end=\"18\"\u003e\u003cstrong data-start=\"0\" data-end=\"18\"\u003eItem Includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"19\" data-end=\"139\"\u003e\n\u003cli data-section-id=\"1b8n12p\" data-start=\"19\" data-end=\"71\"\u003eHeliopan 1012 Yellow Medium-Dark Coated B\u0026amp;W Filter\u003c\/li\u003e\n\u003cli data-section-id=\"3e4jja\" data-start=\"117\" data-end=\"139\"\u003eManufacturer Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"141\" data-end=\"153\"\u003e\u003cstrong data-start=\"141\" data-end=\"153\"\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"155\" data-end=\"447\"\u003eThe Heliopan Yellow Medium-Dark (12) Filter is designed to enhance contrast and tonal separation in black-and-white photography. By reducing blue light transmission, it darkens blue skies, increases cloud definition, and improves overall image depth while maintaining a natural tonal balance.\u003c\/p\u003e\n\u003cp data-start=\"449\" data-end=\"693\"\u003eConstructed in Germany using premium SCHOTT optical glass, this filter delivers outstanding sharpness and optical clarity. The slim brass mount is engineered for durability and smooth threading while minimizing the risk of sticking on the lens.\u003c\/p\u003e\n\u003cp data-start=\"695\" data-end=\"875\"\u003eIts low-profile design helps prevent vignetting on wide-angle lenses, and unlike many slim filters, it retains a front accessory thread for additional filters, lens caps, or hoods.\u003c\/p\u003e\n\u003cp data-start=\"877\" data-end=\"1033\"\u003eHeliopan’s 4-layer coating reduces flare and reflections while providing water- and dirt-resistant protection for easier cleaning and long-term reliability.\u003c\/p\u003e\n\u003cp data-start=\"1035\" data-end=\"1047\"\u003e\u003cstrong data-start=\"1035\" data-end=\"1047\"\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1048\" data-end=\"1510\"\u003e\n\u003cli data-section-id=\"a14u7m\" data-start=\"1048\" data-end=\"1090\"\u003eDesigned for black-and-white photography\u003c\/li\u003e\n\u003cli data-section-id=\"14q6gvp\" data-start=\"1091\" data-end=\"1127\"\u003eMedium-dark yellow contrast effect\u003c\/li\u003e\n\u003cli data-section-id=\"1jgn2z3\" data-start=\"1128\" data-end=\"1174\"\u003eDeepens blue skies and enhances cloud detail\u003c\/li\u003e\n\u003cli data-section-id=\"xvemkf\" data-start=\"1175\" data-end=\"1221\"\u003eImproves tonal separation and image contrast\u003c\/li\u003e\n\u003cli data-section-id=\"11y6blp\" data-start=\"1222\" data-end=\"1253\"\u003eHelps reduce atmospheric haze\u003c\/li\u003e\n\u003cli data-section-id=\"ev6l6n\" data-start=\"1254\" data-end=\"1297\"\u003ePremium SCHOTT optical glass construction\u003c\/li\u003e\n\u003cli data-section-id=\"droymi\" data-start=\"1298\" data-end=\"1341\"\u003ePrecision-machined slim brass filter ring\u003c\/li\u003e\n\u003cli data-section-id=\"j7wag3\" data-start=\"1342\" data-end=\"1375\"\u003eFront accessory thread retained\u003c\/li\u003e\n\u003cli data-section-id=\"1wdpzig\" data-start=\"1376\" data-end=\"1419\"\u003e4-layer multi-coating reduces reflections\u003c\/li\u003e\n\u003cli data-section-id=\"13why8p\" data-start=\"1420\" data-end=\"1455\"\u003eWater- and dirt-resistant surface\u003c\/li\u003e\n\u003cli data-section-id=\"90893h\" data-start=\"1456\" data-end=\"1492\"\u003eWide-angle compatible slim profile\u003c\/li\u003e\n\u003cli data-section-id=\"1ekfey1\" data-start=\"1493\" data-end=\"1510\"\u003eMade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1512\" data-end=\"1530\"\u003e\u003cstrong data-start=\"1512\" data-end=\"1530\"\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1531\" data-end=\"1975\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"9ejcs0\" data-start=\"1531\" data-end=\"1559\"\u003eHeliopan Filter Type: 1012\u003c\/li\u003e\n\u003cli data-section-id=\"18wwe6g\" data-start=\"1560\" data-end=\"1593\"\u003eInternational Filter Number: 12\u003c\/li\u003e\n\u003cli data-section-id=\"1gqu7u9\" data-start=\"1594\" data-end=\"1638\"\u003eFilter Type: Yellow Medium-Dark B\u0026amp;W Filter\u003c\/li\u003e\n\u003cli data-section-id=\"qcvaxt\" data-start=\"1639\" data-end=\"1669\"\u003eFilter Factor: Approx. 3x–4x\u003c\/li\u003e\n\u003cli data-section-id=\"10o9sp1\" data-start=\"1670\" data-end=\"1693\"\u003eMount Material: Brass\u003c\/li\u003e\n\u003cli data-section-id=\"3sfwep\" data-start=\"1694\" data-end=\"1728\"\u003eGlass Type: SCHOTT optical glass\u003c\/li\u003e\n\u003cli data-section-id=\"6vfirw\" data-start=\"1729\" data-end=\"1761\"\u003eCoating: 4-layer multi-coating\u003c\/li\u003e\n\u003cli data-section-id=\"a7fip0\" data-start=\"1762\" data-end=\"1806\"\u003eFilter Ring Design: Slim with front thread\u003c\/li\u003e\n\u003cli data-section-id=\"5fxfmb\" data-start=\"1807\" data-end=\"1836\"\u003eFilter Height: Approx. 4 mm\u003c\/li\u003e\n\u003cli data-section-id=\"1dzkzqa\" data-start=\"1837\" data-end=\"1941\"\u003eWide-Angle Compatibility:\n\u003cul data-start=\"1867\" data-end=\"1941\"\u003e\n\u003cli data-section-id=\"rudqee\" data-start=\"1867\" data-end=\"1905\"\u003eFull Frame: approx. 24 mm and longer\u003c\/li\u003e\n\u003cli data-section-id=\"ad9ld7\" data-start=\"1908\" data-end=\"1941\"\u003eAPS-C: approx. 18 mm and longer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"14rdhjx\" data-start=\"1942\" data-end=\"1975\" data-is-last-node=\"\"\u003eCountry of Manufacture: Germany\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Heliopan","offers":[{"title":"Default Title","offer_id":51411796590887,"sku":"10123070","price":313.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/0597\/7127\/files\/yellow12.jpg?v=1779213483","url":"https:\/\/cambridgeworld.com\/products\/heliopan-hasselblad-bay-70-medium-dark-yellow-filter-12-schott-glass-for-b-w-photography","provider":"Cambridge World Inc","version":"1.0","type":"link"}