----- Original Message -----
From: "Chip Louie" <[EMAIL PROTECTED]>
Sent: Tuesday, November 13, 2001 1:05 AM
> I have owned and have extensively used the EOS 5/A2E and EOS 50/Elan IIE
> bodies and BOTH of these bodies are noticeably faster at locking on and
> tracking a moving subject when ECF is manually turned off. I only used
the
With all due respect, ECF is what you use to _select_ the focusing point.
After the appropriate AF point is selected, only then the actuall AF begins.
So you just can not compare selection of AF point + AF against preselected
point + AF. Of course, the preselected point + AF wins! There is no question
about that. If you preselect the middle point, any EOS will lock on to the
subject much faster than even with the automatic AF point selection - when
you include the time it takes to select the AF point. If you want to compare
ECF with something, compare it to manual selection. For instance, start from
the middle point and select some other point and then do AF. How long does
it take now? I personally find manual selection from the horizontal (middle)
plane very easy with the CF + thump wheel. Vertical selection, on the other
hand, is total pain in the ... with EOS 3. The situation has been made
better in EOS-1V with the inclusion of the additional button. But still it's
not perfect by all means.
Besides, I might be wrong here, but I seem to remember that the ECF is only
used to select the AF point in the beginning of AI servo focus mode
(tracking). Therefore the camera is not any slower in tracking something
after the correct points is selected. I might be wrong about this as I can't
recall when I might have tried this. Tracking is a situation where I do not
use ECF. That's why the feature can be turned off.
Best regards,
Hugo.
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