I was asked many times why I am using the Aperture Priority Mode on my camera.
How to set up the mode on my camera is explained in earlier posts here or just see the video here on YouTube.
One of the reasons is because I work in bracketing mode, also as explained in the quick video mentioned above.
The different exposure settings when operating the camera in bracketing mode are made over the shutter speed when using Aperture Priority Mode.
Actually the main reason for me to use the Aperture Priority Mode is due to the fact that I like to take photographs in an ambient light situation, or even when the sun has completely gone.
I have studies IT and I learned that a camera is basically a computer that takes pictures. So the P Mode starts calculating the shutter speed and the F-Stop automatically and the priority is to have the shutter speed as high as possible. Why? Because the camera does not know I am on a tripod! Under P Mode, what the camera does, it starts opening up the F-Stop first and this is not what I want.