A friend of mine asked if the body matters for macro, he's already decided on the tamron 90mm and was looking at a Nikon d200 or 3100, not ever had Nikon myself I don't know if any of these are a bit old hat or would these be a good cheaper option for the body or should he be looking for something a little more up to date? Thanks
I started out shooting macro a few years back, using an entry level DSLR and a Sigma 105mm macro and had some terrific results