Remote LiveView Control
Which camera system are you using ? If it's Canon, then you can use a wired Android tablet (requires a USB host port on the tablet) and a remote control app. called "DSLR Controller" ( http://dslrcontroller.com/ ).
I've used this with a 10" Asus Transformer TF101 tablet and my Canon 50D.
Check out my galleries (lots of macros) at :
|Greenwich Village Winter by blucoyote|
from Your City - Snow
|Rifugio Locatelli & the Tre Cime di Lavaredo by James Rushforth|
from Astro Landscape
|Smokin' by Kukla|
|Ford GT by Jose Olivares|
from F is for...