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Title: Don't expect anything high quality.
Review: I've bought this a few years ago, and tried to use it with my Canon EOS 40D, with Sigma 10-20 f/4-5.6 lens. The filter does pass the infrared light as it's supposed to, but the quality of the resulting image is horrible. I definitely recommendHoya 77mm R-72 Infrared Filterinstead of this one. Two stars for at least doing what it says, otherwise it would be one star.
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