Kim wrote:
> How much slower is the 70-200+TC autofocus? Was it extremely noticeable?
I didn't test it myself, but used the comparisons at www.photozone.com which
rates the AF speed of the 70-200 with 2X TC at 61 out of 100 and the 100-400
at 86. Based on that input, I imagine it would be noticeable.
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Kim,
Cannot access that site. Was it a scientific test or just based on people's
opinions like info often found on other websites?
It would make some sense since the AF is really slowed by an increase in
weight/mass and the 100-400mm lens is larger and heavier. However, for the
25 msecs (thousandths) difference, I would stil go with the longer lens
since
it has IS since it ensures the image sharp using a shutter speed of 1/125
while the 70-210mm w/2x TC is less likely to be sharp at 1/125 handheld.
Peter K
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