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There is something I don't understand about this lens.
I'm sure it's a great lens.
How is it that when I'm shooting at f2.8, 200mm, with the IS on, at 1/6400 of a second, the shots are out of focus?
I'm shooting with one shot auto focus on.
Even with a mono pod, at F4, on the 30D, bright overcast light, at 1/3400 of a second, IS on.
I'm baffled.
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