Posted by Richard Crowley on 12/25/06 15:15

"Jan Panteltje" wrote ...
> "Richard Crowley" wrote...
>>Video resolution is frozen at 720x480. This is the same
>>for every video camera in NTSC-land (720x586 in the
>>PAL-territories).
>
> Richard, I have a cheap Mustek mpeg4 one, that records on SD card,
> and I just tested that.
> It does 640x480 @ 30fps (or 25fps), and has digital zoom.
> The sensor itself is 3M pixels (2048 x 1536).
> For the same lens setting, and all digital zoom settings, the image
> is always calculated down to 640x480.
> This means if I zoom in digitally, then I will indeed pass a point
> where I am using only a 640 pixels wide part of the sensor :-)
> Digital zoom simply uses only a smaller area of the image sensor,
> and recalculates it to required the output format.

The OP wants to record a "wide shot" so that he can do a
digital zoom AFTER THE FACT (in post-production editing).
That would imply that he must record the 2048 x 1536 x 30fps
"video" (somehow?) so that he can then go back and select
which 640x480 part of the mage he wants at each moment.
How do you do this exactly? I'm sure many of us would be
very interested. I'd love to do it myself.

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