On 29 Apr 2001, at 0:38, Eduardo Carone Costa J�nior wrote:
> Hi Ken,
>
> At least we agree to disagree! No. That's not true... perhaps a slight
> misunderstanding.
> Of course a camera AF does not have a gear box, as a automobile does. But my
> analogy was more focused --- no pun intended --- on a car drive shaft.
I doubt that the bodies AF motor is direct drive, I assume that it is geared as
the shaft rotation speed is quite slow (relative to the speed of even a high
torque DC stepper motor). But in any case the AF shaft on the AF TC that I
own spins quite freely and is extremely unlikely to introduce even the
slightest extra load on the system. I would assume that if the TC was badly
designed and the AF shafts did not couple correctly then maybe this would
cause a slow-down of the AF speed otherwise I can't see how this might
occur.
Cheers,
Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
Fax +61-2-9554-9259
UTC(GMT) +10 Hours
[EMAIL PROTECTED]
http://www.ozemail.com.au/~distudio/publications.html
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