So your out with you dslr and 300mm zoom on a late afternoon, the light is fading a bit then you see a Heron flying with some young, they are putting
there foot down(wings lol) and flying at some speed, but you want to try to get a half decent hand held pic of them, do you -
A) up your ISO or let Auto creep up ab it into 4 figures, to give you more shutter speed and aperture.
B) up your shutter speed within ISO limits but open up your aperture, reducing IQ and facing a less sharp pic.
C) lower shutter speed but keep a narrower aperture, giving slightly better IQ(Lens sweet spot) but possibly a bit of camera shake.
Say for sake of argument your lens is best at f8 and its not as good at its widest f5.6.
Any thought folks?