Nevada Chuck wrote:
If you don't do a lot of close-ups of the type you describe, and don't want to spend the money for a new macro lens, get a set of extension tubes. You could also get by with a lens reversal ring, but will have to shoot totally manual; a lot less money, though.
The Canon G6 does not have interchangeable lenses. It does have a Macro setting just learn how to use this feature and you'll be good to go.