So I decided I really wanted to take a look at this close up stuff and got a Canon 500D close up lens and here's a photo from my quick tests to make sure it was good and I thought this shot was kind of interesting. In particular I did not notice till afterwards the rainbow effect in some of the old thick glass bottles. Thanks for looking, next up is some real close up investigations. F.Y.I. the lens was screwed on the end of a 24-105 f4/L. Peter.