Hello. I have a Canon PowerShot SX700 HS and I want to be able to control it with the Arduino (Zoom In/Out, Shoot. I know I will have to use a USB Host Shield to connect my camera and most likely the CHDK. I just don't know what code to use. Any help is greatly appreciated! 
let me google that for you
So embarrassed right now! I was just googling the wrong thing, sorry.
glad we could help !
do not feel embarrassed.
we all can get focused on a detail and miss the obvious.
if you want to laugh, put 'arduino' in front of any search term.
and thanks for posting the [solved]
sure wish more people would do that !
Thanks lol.