{"product_id":"heliopan-rollei-bay-ii-kr-15-85b-filter","title":"Heliopan Rollei Bay II KR 15 (85B) Filter","description":"\u003cdiv class=\"flex flex-col text-sm pb-25\"\u003e\n\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:17b8cf84-42d7-4303-88d0-38afa8d8cd87-2\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] @w-sm\/main:[--thread-content-margin:--spacing(6)] @w-lg\/main:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"60d880e1-7144-497b-b573-84a7c8231dde\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-2\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"73\"\u003e\u003cstrong data-start=\"0\" data-end=\"73\"\u003eHeliopan KR15 (85B) Color Conversion Glass Filter – \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"75\" data-end=\"586\"\u003e\u003cstrong data-start=\"75\" data-end=\"88\"\u003eOverview:\u003c\/strong\u003e\u003cbr data-start=\"88\" data-end=\"91\"\u003eThe Heliopan KR15 (85B) Color Conversion Filter is designed to restore natural color balance when shooting \u003cstrong data-start=\"198\" data-end=\"236\"\u003etungsten-balanced film in daylight\u003c\/strong\u003e. Without correction, daylight exposure on tungsten film produces a strong blue cast. The KR15 (85B) effectively warms the image, delivering accurate, pleasing colors even under bright, high-temperature daylight conditions such as midday summer sun. Made in Germany, this filter reflects Heliopan’s legendary optical precision and mechanical quality.\u003c\/p\u003e\n\u003cp data-start=\"588\" data-end=\"607\"\u003e\u003cstrong data-start=\"588\" data-end=\"605\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"608\" data-end=\"1232\"\u003e\n\u003cli data-start=\"608\" data-end=\"695\"\u003e\n\u003cp data-start=\"610\" data-end=\"695\"\u003e\u003cstrong data-start=\"610\" data-end=\"638\"\u003eColor Conversion Filter:\u003c\/strong\u003e Eliminates blue cast when using tungsten film outdoors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"696\" data-end=\"775\"\u003e\n\u003cp data-start=\"698\" data-end=\"775\"\u003e\u003cstrong data-start=\"698\" data-end=\"717\"\u003e85B Correction:\u003c\/strong\u003e Converts daylight (~5500K) to tungsten balance (~3200K)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"776\" data-end=\"860\"\u003e\n\u003cp data-start=\"778\" data-end=\"860\"\u003e\u003cstrong data-start=\"778\" data-end=\"793\"\u003eKR15 Glass:\u003c\/strong\u003e Darker brown than KR12, ideal for clear air and intense daylight\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"861\" data-end=\"940\"\u003e\n\u003cp data-start=\"863\" data-end=\"940\"\u003e\u003cstrong data-start=\"863\" data-end=\"891\"\u003eNatural Color Rendition:\u003c\/strong\u003e Optimized for high daylight color temperatures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"941\" data-end=\"1014\"\u003e\n\u003cp data-start=\"943\" data-end=\"1014\"\u003e\u003cstrong data-start=\"943\" data-end=\"962\"\u003ePremium Optics:\u003c\/strong\u003e Precision-cut, ground, polished, and coated glass\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1015\" data-end=\"1087\"\u003e\n\u003cp data-start=\"1017\" data-end=\"1087\"\u003e\u003cstrong data-start=\"1017\" data-end=\"1038\"\u003eSlim Brass Mount:\u003c\/strong\u003e Black anodized brass ring minimizes vignetting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1088\" data-end=\"1154\"\u003e\n\u003cp data-start=\"1090\" data-end=\"1154\"\u003e\u003cstrong data-start=\"1090\" data-end=\"1107\"\u003eFront Thread:\u003c\/strong\u003e Allows lens caps, hoods, and filter stacking\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1155\" data-end=\"1232\"\u003e\n\u003cp data-start=\"1157\" data-end=\"1232\"\u003e\u003cstrong data-start=\"1157\" data-end=\"1177\"\u003eMade in Germany:\u003c\/strong\u003e Manufactured by Heliopan Lichtfilter-Technik, Munich\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1234\" data-end=\"1256\"\u003e\u003cstrong data-start=\"1234\" data-end=\"1254\"\u003eImportant Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1257\" data-end=\"1581\"\u003e\n\u003cli data-start=\"1257\" data-end=\"1316\"\u003e\n\u003cp data-start=\"1259\" data-end=\"1316\"\u003eUse \u003cstrong data-start=\"1263\" data-end=\"1284\"\u003e85 series filters\u003c\/strong\u003e for tungsten film in daylight\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1388\"\u003e\n\u003cp data-start=\"1319\" data-end=\"1388\"\u003eUse \u003cstrong data-start=\"1323\" data-end=\"1344\"\u003e80 series filters\u003c\/strong\u003e for daylight film under tungsten lighting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1389\" data-end=\"1466\"\u003e\n\u003cp data-start=\"1391\" data-end=\"1466\"\u003eA standard \u003cstrong data-start=\"1402\" data-end=\"1415\"\u003e85 filter\u003c\/strong\u003e produces slightly cooler results than an \u003cstrong data-start=\"1457\" data-end=\"1464\"\u003e85B\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1467\" data-end=\"1581\"\u003e\n\u003cp data-start=\"1469\" data-end=\"1581\"\u003eThe \u003cstrong data-start=\"1473\" data-end=\"1480\"\u003e85C\u003c\/strong\u003e produces the coolest effect and can also be used creatively as a warming filter with daylight film\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1583\" data-end=\"1628\"\u003e\u003cstrong data-start=\"1583\" data-end=\"1626\"\u003e85 Series Color Temperature Conversion:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1629\" data-end=\"1735\"\u003e\n\u003cli data-start=\"1629\" data-end=\"1654\"\u003e\n\u003cp data-start=\"1631\" data-end=\"1654\"\u003e\u003cstrong data-start=\"1631\" data-end=\"1638\"\u003e85:\u003c\/strong\u003e 5500K → 3400K\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1655\" data-end=\"1681\"\u003e\n\u003cp data-start=\"1657\" data-end=\"1681\"\u003e\u003cstrong data-start=\"1657\" data-end=\"1665\"\u003e85A:\u003c\/strong\u003e 5500K → 3100K\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1682\" data-end=\"1708\"\u003e\n\u003cp data-start=\"1684\" data-end=\"1708\"\u003e\u003cstrong data-start=\"1684\" data-end=\"1692\"\u003e85B:\u003c\/strong\u003e 5500K → 3200K\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1709\" data-end=\"1735\"\u003e\n\u003cp data-start=\"1711\" data-end=\"1735\"\u003e\u003cstrong data-start=\"1711\" data-end=\"1719\"\u003e85C:\u003c\/strong\u003e 5500K → 3800K\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1737\" data-end=\"1892\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1737\" data-end=\"1751\"\u003eIdeal For:\u003c\/strong\u003e\u003cbr data-start=\"1751\" data-end=\"1754\"\u003eAnalog film photographers, daylight shooting with tungsten film, and professional color correction in high-temperature lighting conditions\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" data-edge=\"true\" class=\"pointer-events-none h-px w-px absolute bottom-0\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Heliopan","offers":[{"title":"Default Title","offer_id":50909822419239,"sku":"720019","price":91.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/0597\/7127\/files\/heliopan-cameras-photo-lenses-filters-filters-heliopan-rollei-bay-ii-kr-15-85b-filter-1215844973.jpg?v=1767938710","url":"https:\/\/cambridgeworld.com\/products\/heliopan-rollei-bay-ii-kr-15-85b-filter","provider":"Cambridge World Inc","version":"1.0","type":"link"}