Hello, does any one know the disadvantages of using wide filters instead of regular filters (I'm trying to get a polarizer and a UV filter for my 50mm lens, to be also used with the 18-55mm digital rebel kit zoom - both happen to share the same thread size: 58mm). Can
I stack filters on top of each other with "wide filters" or will I lost this capability to regular ones?
Also any recommendations? I'm thinking of getting the "B W" ones so as not to give my self any "equipment-related" excuses when the photos turn out bad

Thanks for your thoughts..