I currently use an old Minolta 75-300mm lens with my Sony Alpha DLSR. I'm thinking of getting a newer lens, something like the Sigma.
My question to those who have more experience and know how, is it worth getting the Sigma? Will I get better quality photos and is the Sigma a better lens for taking macro photos.
On a side note, anyone know where one can get good quality second hand Minolta lenses, I'm particularly looking for a macro lens, I just can't get myself to fork out R4000 plus for a Sony macro lens.