Posted by Richard Crowley on 02/09/07 02:47

"Rick Merrill" wrote ...
> Will the autofocus work through a car window?

Depends on what kind of autofocus it is.

Ultrasonic will clearly focus on the inside surface of the
window. Even window/door screens will confuse them.

Infrared may or may not, depending on several conditions.

The kind that analyzes the video image likely has the best
chance of working properly through a window. I believe that
is the most common kind we see in recent products.

> What else should I be asking?

Why you should consider using autofocus at all?

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