I'm a photo student, just got my first DSLR (Nikon D90), and want to start out in macro photography. Out of these two lenses, which would be best for me? (Or please suggest something in a similar price range). Thanks!
http://www.amazon.com/Nikon-50mm-Nik...8104659&sr=8-2
http://www.amazon.com/Sigma-70-300mm...8104659&sr=8-6