Call him if you want more info or go to the links i gave earlier. Bought the 52mm DCR-6600PRO as recommended and tested with the Lensmate adapter (52mm). Really love the difference it makes for wide angled shots.
I have 2 lensmate adapters though, the 52mm and the58mm. The 58mm is used for filters as ?I have the cokin filters from my old 35mm SLR days.