Here is an interesting shootout report of the above:-http://financenews.sina.com/digi/dc/2008-11-05/08562557433.shtml(Text in Traditional Chinese, you can read the Babelfish English Translation Here)Page 1 to 2 are the Introduction parts for the UV "filters" (actually most of us use them as "protectors", I would say). Page 3 talks about the testing methodologies. Page 4 to 7 are the detailed
