title: google map API zoom range
body: <p>I am using google map API version-3 , I was trying with different zoom value, I have randomly done for some numbers started with 1 upto 100 , map gets zoom in for increasing numbers but some level giving same result, I mean I am getting same zoom for 30 and 100.</p>
  
  <p>I like to know , what is the exact range for zoom?</p>