I was thinking of picking up a Macro lens. I've been doing a lot of weddings lately and its hard to get the best ring and fine detail shots that I think a Macro would significantly make easier, not to mention a better pic.
Couple questions though. Aside from fine detail ring shots, etc., what are other good uses of a Macro lens? I've seen some people like to use them for portrait. What do you think?
Next, which Macro Lens would you recommend? The Canon 100mm seems the popular choice, but what about Sigma or other brands? Sigma has a 105mm with "IS" and a 70mm without. What to choose?