Firmware 1.2 the newest right? Anyway should be the same. U know the up down right left button. U click on the up button (exposure). Then u continue to press up a few time should be able to set the flash exposure. If i am nt wrong u got to eject ur flash. Not sure whether can this done in IA mode. Normally i am using A, P, S, M. Camera not with me nw...
Hope this help.
OK, i get what thunderflash means.
when you are is S,P,A,M mode, press the +/- button which is at the up down left right buttons (Not referring to the Q.Menu button).
1st press will show you the autobracketing menu.2nd press will show you the flash exposure which allow you to adjust the power of the flash exposure...
Hope you guys get what im talking.