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Floh Peters
February 17, 2007 at 10:15 am[Greg] “On this video I had a client who taped a short intro onn Mini DV. I added a 20 frame dissolve from black to his image. As it fades up it goes brighter than it’s video level for 1 frame then to normal. It’s an ugly fade up.”
Where are you seeing this? In Media 100 already? Is it visible in your exported file (by ref from Media 100)? Or only in your encoded MPEG? From what you are describing it sounds like a 16-235/0-255 range problem. The dissolve seems to be rendered in a 0-255 codec, while the original clip is in 16-235. Unrender the dissolve, set the rendering codec to Media 100 i (or Media 100 HD) and render again. Export and look at the resulting QuickTime.
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Greg Ball
February 17, 2007 at 4:38 pmFloh, I’m not seeing this in Media 100. I just noticed that it is visible in the exported file (by reference from Media 100). Both the acquire and render codec settings are set to media 100i, best quality and the Do Lossless compression boxes are checked.
Can this have anything to do with the fact that the clip is from Mini DV while everything else is digitized from Beta SP? I also had this exact thing happen on my last project with a stock footage animationclip from Artbeats.
I tried what you suggested with the same results.
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Floh Peters
February 17, 2007 at 5:09 pm[Greg] “Can this have anything to do with the fact that the clip is from Mini DV while everything else is digitized from Beta SP? I also had this exact thing happen on my last project with a stock footage animationclip from Artbeats.”
If you have acquired from DV into the DV codec (which of course makes sense) you have a mix of different luma ranges when exporting by ref. You should do a “full” QuickTime export to a codec you want to use, e.g. to Animation/Lossless to get the highest quality. When mixing codecs with different RGB ranges you will see this problem. To avoid this you could digitize into the same codec for the whole project (depending on what your target format is).
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