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  Moving “scan??” lines on white portion of video IMAG image

  Posted by Js Copeland on April 26, 2013 at 11:42 pm

  Hello there,

  This is my first post so forgive any shortcomings in it.

  I have moving lines over the white portion of an IMAG image in a video projection (not zebra). It’s a podium shot and the banner on the podium has white with moving lines on the edges showing on the projection screens.

  A canon xlh1 camera, running BNC to Edirol switcher, running VGA to a DA to the Texas DLP projectors.

  This is happening only in the bright white portion of the image. Anyone have an idea of what’s happening here? I turned every knob and pushed every button I could think of to see if this effect would go away, but it hasn’t.

  Boo VGA by the way.

  Anyone??

  -S

  Js Copeland replied 13 years, 4 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Mark Suszko

  May 2, 2013 at 2:55 pm

  Does it go away when you iris down the camera?
• 

  Js Copeland

  May 2, 2013 at 3:21 pm

  Thanks for responding.

  It does not go away when I iris. I did every combination of knob twiddling I could think of. Iris, shutter, frame rate.

  Definite noise in the highlights. Most obvious on the white border of the sign on podium.

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