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a collection of photos by Eric Chesak
www.ericchesak.com
Filter Tests
Read More17 / 19
807nm Filter Comparison with and without UV Filter
Many IR filters have transmission in the UV region. This test was performed to see what effect a Hoya UV filter would have on 2 different IR filters, with some UV transmission.
eric chesakcanon 50dfull spectruminfraredirphotographyel pasotexasastronomik807