Originally posted by Blue
I agree about trying out the Sigma. I'd have to try the 105 also. My current 105 is actually a Viv Series 1. I actually interested in the Sigma 180mm but at that price, I'll certainly have to try it out first!

The sigma 180 would be very, very nice, however, for me, I like to shoot macro & close-focus handheld whenever possible. I think it might be pretty tough to do that with the 180mm. (based on the fact that it's already getting hard at 105mm (Viv) for me, I could be wrong about the 180's level of difficulty.)
Handheld macro with the DA 35ltd is actually very easy, with the FA 50 macro it was still pretty easy, and with the Viv 105 it's getting tougher but still very possible. I suspect the Sigma 70 will fall in between the FA 50 & Viv 105's level of difficulty.
If you're a serious macro wiz and are going to be using a tripod with rails, etc, the Sigma 180's probably a fantastic choice.
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