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Sigma 82mm EX UV Filter



Sigma s EX DG UV filters benefit from a multi-layer lens coating, developed to counteract the high
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Sigma 82mm EX UV Filter
Sigma s EX DG UV filters benefit from a multi-layer lens coating, developed to counteract the highly reflective characteristic of image sensors. With older style filters, light would reflect off the image sensor, bounce off the lens and filter elements and re-enter the image sensor, creating a ghost image. The multi-layer coating dramatically reduces this effect. In addition to this, an optimum, neutral colour balance is ensured, increasing the white balance accuracy of the digital camera.

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