In this video I take you step by step and show you how to build a Pole for elevated photography.
And here is a video I did a while ago showing this pole in action:
https://www.facebook.com/164100506935457/videos/1347706095241553/
I use a Wooster Sherlock 8-16' painters pole which I found to be the best painters poll for this application.
http://www.homedepot.com/p/Wooster-8-ft-16-ft-Sherlock-Extension-Pole-00R0570000/100187303