big-guy wrote:
Not sure what your getting at here. You set the camera on a tripod, make your setting choices, use BBF to get focus, go sit down on the lawn chair, push the cable release and camera makes adjustment to exposure and takes the picture. Oh look, a bird is flying through the scene, everything is already set, including focus, so push the cable release and the camera sets exposure and takes the picture. Why do you want to refocus again on the same spot? The focus is already set. Now if your using manual mode then the camera does not even need to make any changes to exposure as you have already set that in stone so it merely takes the picture, which now does not waste time setting exposure or waste time finding focus, it just takes the picture reducing your already fast lag time. When shooting landscapes you will almost always be at or near infinity (unless you happen to be in a tight space rock canyon) so why would you need to refocus? The BBF only deals with focus (sets it and locks it till you change it), not exposure.
Again, if your view point changes to a different scene (see above, tight space rock canyon)... well you need to touch the camera to do that anyway which also would include setting the new focus point, unless it remains at infinity. As a rule, if the camera don't move then the focus don't move. (rules are made to be broken on occasion)
What am I missing in your scenario?
Not sure what your getting at here. You set the ca... (
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Ah so.....I knew I was making the issue bigger than it is! BBF locks the focus and there is NO rush. Thanks.