In a quest for depth of field, I have been shooting flash (in camera) in manual mode: usually leave at 1/60, apeature about 1.5 stops off maximum and ISO at 400 or 800 as a general setting. Of course, I have to pay attention to the flash indicator that I got a good exposure.
Does anyone have a go to set up for just casual shooting?
#2. "RE: Flash / Depth of Field" In response to Reply # 0
The phrase "maximum aperture" usually refers to the widest opening of the diaphragm (smallest number). Is that what you meant?
If what you want is to increase Depth of Field whilst not having to worry too much about other settings, I would select Aperture priority and an aperture of maybe f/8, and raise the ISO if required.
If you're less worried about DoF, I find Program mode with Auto ISO turned off works quite well for "casual shooting" with the built-in flash if your subject is relatively close. You'll always get better results with a dedicated Speedlight, though.
#3. "RE: Flash / Depth of Field" In response to Reply # 2
I meant that if you do flash photography in Auto / Program mode, the aperature is set to wide open (realize that is the smaller aperture number) and 1/60.
I assume the better mode is to shoot aperture mode, set about 1.5 stops off wide open, and set ISO to 400 or 800. This is what I have been doing as a starting point. I wonder what others do. Of course, then you just need to be sure you do not shoot beyond your flash range.