Can i ask bout flash?
during a low light situation,
I use wide open aperture. f2.8 (widest for eg),
then i use the highest ISO = 1600
then using AV, my shutter speed is 1/30 (for eg)
Now, if i mount a 580exII, it will not help in the shutter speed right?
and the flash will not help in anyway besides the object will have more light on it.
Am i right to say that?