I gave the 500D a try first. The quality of the 500D is good. I found the 500D to be reasonably sharp in the center - but less sharp toward the edges.

Canon 500D Close-up Lens Review

I gave the 500D a try first. The quality of the 500D is good. I found the 500D to be reasonably sharp in the center - but less sharp toward the edges. ...（以下省略）