Hey everyone! I have a Canon 75-300 III f/4-5,6 lens which does not have a dedicated Macro mode in it as the Tamron (Di LD macro) or Sigma (APO DG macro) 70-300 lenses does. My question is, is there any difference between them, can I get better macro shots with the Tamron and Sigma, or what exactly that macro mode does other than locking the zoom between 180-300mm? Thank you!
