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 :
|Bianca Buitendag-7809 by vbuhay|
|Sunrise in Paradise by OB Foto|
from Booby Prize
|The Battle for the Lead by Photo Pete|
from Bicycle sports
|Cecelia's Eyes by Madeleine Hart|
from - Jenny from the Block - (Colors that pop + A white Border)