{"product_id":"cokin-28mm-circular-polarizer-camera-filter","title":"Cokin 28mm CP Filter","description":"\u003ch1\u003e\u003ca href=\"https:\/\/www.fotodiscountworld.co.za\/\"\u003e\u003cstrong\u003eCokin 28mm Circular Polarizer Camera Filter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/h1\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"productDescription_31e7tvldXpfwmbfZ04-QrM\" data-selenium=\"overviewLongDescription\"\u003e\n\u003cdiv class=\"js-injected-html\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cokin 28mm Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges, and filters, this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis filter is constructed from optical glass and features a black, or silver-colored, aluminum-alloy filter ring for durability while remaining lightweight.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"descriptionAsTitle_37RjylfPlfjhd6HWIv4bb4\"\u003e\n\u003cul\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003eHelps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003ePolarizing filters arrange, and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cb\u003eClears up haze in distant landscapes and provides more saturated, vivid colours.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003eStrongest effect when used at a 90° angle from the sun.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003eCircular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003e2 to 4x filter factor reduces exposure by 1 to 2 stops.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cb\u003eConstructed from optical glass and a black, or silver-coloured, aluminum-alloy filter ring.\u003c\/b\u003e\u003c\/li\u003e\n\u003cli class=\"js-injected-html\"\u003e\u003cstrong\u003ePlastic filter case for storage and transport.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Foto Discount World","offers":[{"title":"Default Title","offer_id":51684876386602,"sku":"COK28CP","price":94.05,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/7541\/0730\/files\/20210727_101236.jpg?v=1781054478","url":"https:\/\/www.fotodiscountworld.co.za\/products\/cokin-28mm-circular-polarizer-camera-filter","provider":"Foto Discount World","version":"1.0","type":"link"}