On Tue, 16 Jan 2001 16:31:40 -0800, you wrote:
>Most of the aftermarket TCs don't report the correct aperture to the
>camera, thus avoiding AF shutdown due to insufficient aperture. The A2
>will not AF at apertures smaller than 5.6. But because the true f stop
>is f8, the camera hunts.
]
OK, another newbie, to EOS anyway, question here. I'm having trouble
visualizing how aperture affects AF. We're always focusing with the
lens wide open aren't we? It's not like we have the DOF preview
pressed while focusing. Then I could understand Does the AF
mechanism respond *as though* the dialed in aperture were effective?
Sorry if this is a stupid question.
Ken Durling
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