There are planned shots, and there are grab shots.
When grabbing a dynamic image, just GETTING THE SHOT is more important than getting the shot perfect. This is especially true in areas like street shooting. I may be on a crowded sidewalk when someone picaresque pops out in front of my K20D (with wide manual lens, CIF enabled, Av mode, SR on, 100-800 Auto-ISO). I may have just enough time to point, hold the shutter, and twist the focus ring until CIF snaps. Any problems can be fixed sufficiently in PP, as long as I GOT THE SHOT!!
Any shot you get is better than any shot you DON'T get.
Whereas if I'm moving slowly and shooting compositions, I can take the time to consider ISO, DOF, EV compensation, B&W filtration, stuff like that. (I almost always stay with Auto-WB and fix the light in RAW development.)
We get back to the split: AF zooms (and P&S shooting modes) are great for
taking pictures. MF primes (and manual mode) are great for
making pictures. We can
make pictures of technical competence, and it's all our own responsibility. And we can let the camera's robot brain help us
take pictures of dynamic excitement.
Last edited by RioRico; 05-15-2011 at 11:52 PM.