JohnFrim wrote:
I believe that shutter speeds and apertures are set to standard values when being set manually. In semi- or full-auto mode either parameter, or both, can be set to other in-between values if that parameter is being set automatically. So for example, in aperture mode, there are more shutter speeds available to the camera than when you set shutter speed manually.
Good point even in the analog days aperture priority shutter speeds were "stepless" so as to be as precise as possible.