Macro lenses are what you need to use.

Zoom "marco" lenses are not really macro in that they cannot usually resolve down to the image to subject ration of 1:1 to 1:2 range and do NOT produce a good flat field image. Zoom lenses always have some kind of either pincushion or barrel distortion, however marco lenses are designed to have NONE of that kind of issue

Look for a good used Minolta - AF 50 F2.8 Macro, Minolta - AF 50 F2.8 Macro D or Minolta - AF 50 F2.8 Macro RS lens instead. I you nave the budget, I would recommend the Sony - AF DT 30 F2.8 Macro SAM