BluTuna wrote:I haven't read up on it but I assume the exposure is taken when the shutter release is pressed?
That's certainly the case on my Canon... I normally use aperture-priority and so after focusing and moving the camera around, the AE automatically changes the shutter speed until the shot is taken. Of course, it can still be locked - on my camera the AE lock is handily next to the BBF button, although that might not be the same for Nikon
One advantage that I hadn't thought of until recently is that there's now no longer ever a need to switch a lens to manual focus. If an animal is well hidden behind bushes etc and it's not about to bolt, I sometimes use the live view zoomed right in on the animal and then manually focus to get it sharp. BBF means you don't have to switch to MF when you take such a pic... here's an example of a pic taken that way... auto focus had no chance.
And cropped....
