On 2010-01-11 16:59, Larry Colen wrote:
On Jan 11, 2010, at 1:36 PM, Cotty wrote:
Rattling off at 8 fps is neither here nor there.
I don't care about 8fps. I do care about capturing my subject, in focus.
I'm with you, Larry. Since I mostly shoot cars on road course tracks, I
need it to quickly and accurately acquire and hold focus, and I need it
to be ready for the next shot as fast as possible. I /do/ machine gun
sometimes; that's the nature of the beast. When a wreck or something is
happening, I'm probably not going to get it right if I try to time it.
I know this from experience. So on those occasions I 'gun it. Most of
the time, it's more about being ready instantly since you can't always
predict what's going to happen next, and holding focus through a long
pan waiting for the right composition.
I don't trust the camera to pick the right focus point, especially with
the issues I've seen caused by the "lock time" (time from the shutter
contact closing to the time of the image capture). I've never actually
given it a chance, though, either. So I pick them manually. For
example, if cars are moving quickly from left to right, and I want the
focus in the (horizontal) middle of a the frame, I have to pick one of
the two right-of-center focus points if I'm AFing, depending on just how
quickly they're moving through the field.
--
Thanks,
DougF (KG4LMZ)
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