I'm just starting to get into Macro photography. At the moment I have a few lens that I've been playing with (see GAS). I also bought a Kenko ext tube but none are macro dedicated. Of all items in my possession, it seems that my 70-200 f4 is the one I like the best.
I just want to ask for your opinion regarding the Sigma 28-200mm f3.5-5.6 Aspherical IF DL Hyperzoom Macro lens. I have an opportunity to get one for $100. What do you think of this lens and is $100 a fair price?


