{"product_id":"sigma-95mm-wr-circular-polariser-filter","title":"Sigma 95mm WR Circular-Polariser Filter","description":"\u003cp\u003eThe \u003cstrong\u003eSigma 95mm WR (Water Repellent) Circular Polariser Filter\u003c\/strong\u003e helps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface. The light from the sun naturally becomes partially polarised due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarising filter arranges, and filters, this directionally polarised 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.\u003cbr\u003e\u003cbr\u003eA circular polariser only differs from a linear polariser in that it contains a quarter wave plane in addition to the linear polarising filter. The addition of this quarter wave plane is to circularly polarise the linearly polarised light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polariser, auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarised, it permits the use of these functions.\u003cbr\u003e\u003cbr\u003eThis filter is multi-coated to eliminate internal ghosting and reflections. An anti-static coating serves to limit the accumulation of static electricity, making dust particles easier to remove or preventing them from adhering to the filter. Additionally, a water-repellent coating results in an improved beading effect when in contact with water, as well as oil, for greater cleaning efficiency while enhancing scratch resistance.\u003cbr\u003e\u003cbr\u003eSigma WR Circular Polariser filters are constructed from optical glass with a black rim. Set within an aluminum-alloy filter ring that can be rotated in order to adjust the intensity of the polarization effect, the glass provides increased clarity as well as colour fidelity while the black rim further ensures that reflections do not occur along the filter's edge.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHelps to reduce reflections and glare by filtering out light that has become polarised due to reflection from a non-metallic surface.\u003c\/li\u003e\n\u003cli\u003ePolarising filters arrange, and filter, directionally polarised light perpendicularly to the reflected light, allowing for the absorption of much of the light.\u003c\/li\u003e\n\u003cli\u003eClears up haze in distant landscapes and provides more saturated, vivid colours.\u003c\/li\u003e\n\u003cli\u003eStrongest effect when used at a 90° angle from the sun.\u003c\/li\u003e\n\u003cli\u003eCircular polarisers are ideal for use with digital cameras and autofocus lenses where a linear polariser will often disrupt auto exposure and focus features.\u003c\/li\u003e\n\u003cli\u003eMulti-coated to help eliminate internal ghosting and reflections.\u003c\/li\u003e\n\u003cli\u003eAnti-static coating serves to limit the accumulation of static electricity, making dust particles easier to remove or preventing them from adhering to the filter.\u003c\/li\u003e\n\u003cli\u003eWater repellent coating results in an improved beading effect when in contact with water, as well as oil, for greater cleaning efficiency while enhancing scratch resistance.\u003c\/li\u003e\n\u003cli\u003e1.25 to 1.4x filter factor reduces exposure by 0.3 to 0.5 stops.\u003c\/li\u003e\n\u003cli\u003eConstructed from clear, optical glass with a black rim which further ensures that reflections do not occur along the filter's edge.\u003c\/li\u003e\n\u003cli\u003eAluminum-alloy filter ring is durable while remaining lightweight.\u003c\/li\u003e\n\u003cli\u003eFilter ring can be rotated to adjust the intensity of the polarization effect.\u003c\/li\u003e\n\u003cli\u003eKnurled front edges provide a more textured grip when mounting or removing it from a lens.\u003c\/li\u003e\n\u003cli\u003e95mm front filter threads allow for use with other filters.\u003c\/li\u003e\n\u003cli\u003ePlastic filter case for storage and transport.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":44577980121365,"sku":"AFJ9C0","price":450.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/0252\/0085\/products\/1410872931_1082714.jpg?v=1680210994","url":"https:\/\/www.cameraelectronic.live\/products\/sigma-95mm-wr-circular-polariser-filter","provider":"Camera Electronic","version":"1.0","type":"link"}