User Activity

In menu, under flash control, I got to Wireless func.There are 4 choices. Im not sure what they mean.Disable. okLooks like the next gives an option of power difference between external and on camera flash.The next is not having the on camera flash at...
Can I set up the camera so I can autofocus by touch screen but not take a shot?Right now it only seems to work to autofocus if the camera takes a shot.