>
> There are also some products which hook to a PC parallel port and
> can grab a "frame" after several passes of full rate video have
> gone by.  This is a bummer if your image is not relatively static
> but OK for something like a security camera or some such. Unfortunately,
> I can't think of any published designs for one of these "cheapo"
> circuits.  Anyone else ?
>

Electronics World and Wireless World published just such a circuit a
couple of months back. I don't have the issue handy, I can check the
issue number if anyone is interested.

Ben Raymond
braymond@eleceng.adelaide.edu.au