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AE blackmagic preview contrast/colors incorrect
I have just updated to blackmagic’s new drivers (5.5.1) for my BM HD Pro card and now when viewing AE output on my broadcast monitor my black levels are a little lifted and chroma is a touch washed out. This only happens when viewing through AE. When I take the same rendered file and pull it into the broadcast monitor via extended desktop, the image looks proper. The monitor is sdi and set up properly (with bars and bluetrap). Anyone else experience this? Don’t know of a way to adjust any display output settings through AE.
Thanks
Todd
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7 Replies
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In your AE preferences(video output)settings, did the codec get changed? It should be set on Blackmagic RGB.
Chris Smith
https://www.sugarfilmproduction.com -
There are only 2 options NTSC and PAL. It is set correctly on NTSC.
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There are 3 NTSC options. 8 bit and 10 bit are YUV codecs. Use the NTSC – RGB codec.
Chris Smith
https://www.sugarfilmproduction.com -
Hmm perhaps I wasn’t clear. The incorrect video levels I am seeing are when I am simply working in AE prior to rendering out. Just using the display output for my broadcast monitor to do my work the colors are incorrect. If I then render out what I am viewing and open that quicktime on the desktop and drag it to the broadcast monitor (as set up as an extended desktop) it looks correct. Take that rendered file and import it into AE and view it through AE display on the same monitor and it’s incorrect. So the problem is strictly limited to throughput through AE.
Thanks for your help
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My AE prefs are as follows: Under Preferences>Video Preview – Output Device>Blackmagic Video Output
Output Mode: Blackmagic NTSC – RGB (only other option is PAL)I am using AE7
I agree that it probably is an RGB/YUV color space issue but I don’t have any other options in the pulldowns and this is supposed to be correct. Sorry for the hassle.
On an unrelated note, I noticed for the last while my rgb monitor has drifted a little. It is a JVC TM-H150C using sdi. 50% gray has a slight green cast to it. I know I can bypass this through the menus but am unclear as to why it drifts through sdi at all. By the way, this is very subtle, my original color concerns are much more dramatic.
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I’m just reading off the options I have and there are 3 for NTSC.
Ouch, Cin
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My experience with a standard definition DeckLink Pro card may or may not be of use to you. I used the DeckLink card to capture both black and white and color files from digibeta tapes. When previewing the files (in either Premiere Pro 2.0 or After Effects 7.0 Professional) using the analog out of the DeckLink card into my JVC-H1310SU monitor, I noticed a subtle green tint of the screen. The green tint was more noticeable on my black and white files (versus my color files) and was more noticeable when using the component out of the card (versus the composite out). The green tint was also noticeable when viewing the files in the preview monitors of either Premiere Pro or After Effects or in the QuickTime player.
I checked the histograms of the black and white files using the 1.5.6 plugin version of Color Finesse within After Effects. The mean value of the blue histogram was less than the mean values of the red and green channels and the red and green channel contained what could be described as a high frequency
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