I'm looking into buying a close up lens for my 45mm 1.8. I came across this lens from B+W. I would like to get as close as possible to 1:1. Since I don't have a macro lens I would like to use my 45mm for macro work. B+W 37mm Close-up +5 Lens (NL5) 65-023338 B&H Photo Video Do you guy think this filter will come close, or if not can you guys recommend me another one. Thanks.