With Kenko Extension Tube Set DG for Sony E mount (inc full frame)  you can conveniently turn your regular lens into a macro lens.  
 
When attached between your lens and your camera body, it minimizes the distance from your camera and the objects you want to shoot at.
 
Kenko Extension Tube Set DG for Sony mount comes with a set of 2 rings, in 10mm and 16mm, that can be used together for a longer focal length.