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Re: [ATM] webcam and foucault test?

Robert
  I hooked my digital camera up to my tester and connected it to my tv.  
It is an older Kodak DC 290 but still has a 3x zoom and 2.3 mp.  I built 
a cradle to mount the camera that is on top of a 2 axis slide with 
micrometer movement.
http://www.jamescrombie.com/pics/ft6.jpg
http://www.jamescrombie.com/pics/

James Crombie
http://www.jamescrombie.com

Robert OToole wrote:

>   I am thinking of resurrecting my knife edge foucault tester to do some
>mirrors and would like to simplify my life a bit. It was originally
>made like Richard Berry's version, with a small telescope behind the
>knife edge.
>I've heard of folks, instead, using a webcam behind the knife egde and
>viewing the shadow patterns on a PC screen.
>
>  I have a spare pc lying around and I'd love to try this out.
>Do folks have any advice as to what type webcam to use?
>other advice?
>
>Thanks,
>Rob
>
>
>
>-Robert OToole
>
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