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  • Generating zebra bars in Premiere?

     Tom Galli updated 1 month, 1 week ago 3 Members · 4 Posts
  • Tom Galli

    March 3, 2021 at 7:49 pm

    Aloha all!

    I’m working on a video that illustrates how to evaluate exposure in a camera. I want to show examples of using histogram, zebra bars, waveform monitor, and false colors. For consistency’s sake, I want to “fake” the content in Premiere, rather than gathering multiple cameras and/or monitors. The histogram and waveform monitor are built in to Lumetri scopes. I’ve got a LUT to emulate false colors.

    How do I get Premiere to generate Zebra bars? Preferably monochrome ones, but I’ll take what I can get. I know that in earlier versions, you could have sort-of zebras as an overexposure warning, but I can’t even find those anymore! (I’m using Version 14.2, or CC 2020).

    Mahalo!

  • Bret Hampton

    March 3, 2021 at 8:28 pm

    I don’t know any way to do in Premiere.

    I suggest looking for an image in one of the stock photo programs, but they won’t likely move along with your video.

    Try one of these FB groups for Premiere. Perhaps someone there knows.

    https://www.facebook.com/groups/adobepremierepro/?multi_permalinks=3801838383211086

    https://www.facebook.com/groups/galvideo

  • Bill Celnick

    March 4, 2021 at 10:47 am

    I know it’s not what you want to do, but I think you’re best bet would be to simply create these conditions with your own cameras, and capture what your viewfinder sees into your computer, then either record it or create stills to demonstrate your point.

    It might be much faster then searching whatever stock libraries might have – you may not find exactly what you want, and of course, you’ll have to pay for it.

  • Tom Galli

    March 10, 2021 at 6:48 pm

    To wrap this up:

    Extensive searching and posts on various help sources have convinced me there’s no particularly easy way to do this. What I ended up doing was:

    • Draw a pattern of diagonal bars in Illustrator.
    • Wash said image thru Photoshop to make the background transparent
    • Use keyframes to animate the image crossing the screen left-to-right in Premiere on v2
    • Duplicate and offset that animation to v3 so I can have continuous bars with no gap when the edge of the image crosses the screen.
    • Sandwich those layers between cloned footage on v1 and v4
    • Apply a Luma key to v4
    • Play extensively with settings until the effect only keys out highlights

    It works, although I don’t have the accuracy of control I hoped for. But it’s close enough for this particular project.

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