Negative Positive
Title: Works, but causes flare
Review: This item is either not coated or has a single coating and thus any time sun hits the filter, it produces flare in the picture. Furthermore, after doing more research it turns out that these uncoated or single coated filters can cause up to 9% light loss vs multi-coated filters like Hoya S-HMC or B+W MRC filters. As for polarizer effect itself, I think it's amazing and you owe it to yourself to at least try it on a nice sunny day. (the sky and foliage will look completely different and alive)
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