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Posted by Rick Merrill on 02/09/07 14:59
Richard Crowley wrote:
> "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?
>
>
The 'subject' may change from 300 ft to 2 ft pretty quickly
plus I' may or may not have a way to support the camcorder
other than with my hands alone.
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