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MXF becomes overexposed in Premiere CS3
hi guys,
i have an interesting issue…
i’ve shot a whole lot of action snow-sports on the sony ex3.
when i review the footage in the camera, the exposure is correct and detail in the sunlit snow is visable.
however, when i import the mxf files into prem cs3 after converting to mxf in sony’s clip browser software, the whites (which is most of the frame being the snow) appear really blown out.
though this is the interesting bit; when i open the mxf file in a third party player like vlc, the exposure appears correct and the detail in the bright whites has returned…this leads me to believe it is premiere that is crushing the whites. how do i make it stop? anybody?
thanks guys.
tim.
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5 Replies
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Why are you converting the files?
If you have the most up-to-date CS3 updates, you should be able to use the EX files just the way they are (MP4 wrapper).
You may want to give it a try and see if the latitude shift happens with that workflow…
TimK,
Director, Consultant
Kolb Productions, -
unfortunately premiere blows out the whites whether i use the converted MXF files OR the wrapped MP4’s. i can’t understand why something free like VLC will play roughly the correct colour information where as premiere displays an almost unusable picture. i have also tried exporting out a clip from premiere (hoping that it was purely a display issue) but i still get seemingly overexposed footage.
any ideas?
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Do you have an NVIDIA display card?
TimK,
Director, Consultant
Kolb Productions, -
yes i do have a NVIDIA quadro FX 1600M…
you think that has something to do with it?
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NVIDIA Quadro cards actually run two sets of color adjustment settings…one for the desktop, and one for ‘video overlay’.
This may be a possible source of the difference you’re seeing.
Video overlay is a layer that is (as you might guess) intended for use with video playback, but all apps that play video don’t necessarily use the overlay layer. PPro does use it, but your video player may not…hence the two different impressions of the footage.
In the Quadro settings/preferences, there should be color adjustments for both the desktop (or general or something similar…each version of the drivers is a bit different), and you should see settings for video overlay. If the two settings don’t appear to be different, you’ll have to adjust the overlay settings to dial them in a bit.
TimK,
Director, Consultant
Kolb Productions,
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