x2, I use mine for everything but pics of flies and indoor shots. Your shutter speed is going to be a little slower, but not by much.Get a circular polarizer. You can use them anywhere, but if you use them indoors you will use detail in the shadows. Outdoors is the best. Dont have to change any of your camera settings.
sometimes two just feels safer after long drunken nights being out of focus [smiley=40s.gif]