You're in AF-C. But what focusing method are you using? Spot?
Selective? Matrix?
I've found shooting these darn dogs, who rarely stand still point for
an instant, I am forced to use Spot, and try to keep the animals eyes
in that little center focus. And still, the camera, if focus is lost,
will go on a hunt for something to focus on. If the center focus point
is interrupted by an interloper, or slips off to the background (I'm
tracking, remember) the camera may go to a focus extreme if it chooses
the wrong direction to hunt to. And I'm assuming that is dependent on
the last predictive moment it records before losing focus.
If you use Matrix (Multipoint) focusing on moving subjects in AF-C, I
think the camera looks for any movement in the frame and focuses on
that. If that's not what you wanted, tough. For single shots of moving
subjects, capture focus seems to work better than AF-S predictive,
most likely because the program only has to predict one event, not a
series of events as a subject coming towards you would create in AF-C.
This is one of the problems that no one has solved yet. At least at
Pentax. The camera can only be programmed for so many eventualities.
Go outside the program line, you are lost and must wait for a reset.
And nothing in the frame will be in focus at times in this scenario.
The only thing more frustrating is trying to take a photo when the
camera is set to "allow shutter release only when focus is confirmed".
Nothing ever is until a bad time to take the photo comes along. Then
the shutter trips. :-)
On Aug 1, 2009, at 10:36 , Larry Colen wrote:
On Sat, Aug 01, 2009 at 01:27:39PM -0400, Graydon wrote:
On Sat, Aug 01, 2009 at 09:10:01AM -0400, paul stenquist scripsit:
My K20D front focused with the FA 50/1.4. I had to adjust the the
camera
using the menu option for focus fine tuning.
The other thing I've found is that the focus system can see things
you
can't. I can't begin to count the number of out-of-focus birds due
to
wee small leaves in front of the bird; focus or focus confirm nails
the
leaf, which I didn't actually notice, and poof, out-of-focus shot.
I am all too familiar with this. When the camera does this, there is
nothing at all in focus in the frame.
Joseph McAllister
[email protected]
“ The early bird gets the worm, but the second mouse gets the cheese.”
— Kevan Olesen
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