The camera in most smartphones today is usually adequate for the average user. However, there are times when professional grade equipment is necessary. For those with high end camera rigs, a remote control system can be quite useful.
Similar to DSLR Controller by XDA Elite Recognized Developer Chainfire, Senior Member MagicAsh‘s latest application USB Cam Controller uses your USB host-capable Android device to control the shooting on your Canon or Nikon camera. The application can control:
Focus Points changing
Setting Shutter Speed
So far, the developer has specifically tested and confirmed the application functioning properly on both the Canon EOS 600D and the Nikon D200. However, the application should work with the majority of other Canon and Nikon devices as well. So what are you waiting for? Head on over to the original thread and give this a go._________