Can someone enlighten me, I acquired 430ex ii for my 6D recently.
I am using 6D for six months, its my first dslr. I am used to Av mode, auto ISO, minimum shutter speed set.
The camera will meter properly and under or overexpose accordingly base from exposure compensation.
My concept of having a flash is that. The camera will meter the scene automatically as if it wasn't using flash. According to settings. Then the function of a flash is just an addon light to the scene.
But I don't understand what is actually happening when using flash in Av mode:
In Av mode with flash. My shutter speed goes less than the min shutter speed set in the camera.
ISO stuck to 400 (why is this?). I can not control my ambient light.
I know I can use manual, but what I want is the camera is able to meter on the scene automatically, basically use only exposure compensation for ambient and FEC for flash add on. How can I do this.