title: How to scale custom pins MKMapKit
body: <p>I Have just added a custom pin image to a pin on my map. The problem is that the pin is quite large and covers a lot of the map this is fine zoomed in but is a problem when zoomed out as the user cant see any of the map. </p>
  
  <p>How can I make the pin scale down when the user zooms out? 
  I have googled it but cant seem to find any answers. </p>
  
  <p>Here is my <a href="http://pastebin.com/L6ZuJ1UN" rel="nofollow">code</a></p>
  
  <p>Does any one know how to do this or where I can find out how?</p>
  
  <p>Thanks!</p>