Most of my close up pictures are shot with this handy Hoya lenses, and the Lensmate 52mm adapter.
A comment on post processing here. To preserve the highlight detail that Rod luckily noticed, I had to do some selective sharpening. Using the same theory as partial desaturation, I did some 200USM on a duplicate layer and then erased the highlight area. This was necessary as the highlight, when sharpened, got blown :)