Lou van Wijhe wrote on 8/20/2015, 5:53 AM
Search the online help for Video output effects. It's all there.

Satevis wrote on 8/20/2015, 5:59 AM
The video master bus affects both preview and render. Adding an effect there is the same as adding it via the preview window.
musicvid10 wrote on 8/20/2015, 6:20 AM
The video bus is the output, very last in the effects chain.
Its where you would put your final levels filter after editing in native RGB space, as one example.
Mindmatter wrote on 8/20/2015, 10:11 AM
Thank you all for your replies.
I initially understood / thought that it's a real master bus, but what got me confused was the plugin called SEMW extensions, which has a context box on its switch to set the preview output to PC RGB saying: "this will not affect the final render".
Maybe it disables itself on rendering, not sure.
Anyway, thanks for clearing that up for me.
Satevis wrote on 8/20/2015, 10:23 AM
Yes, Preview Levels actively disables its output effect during rendering. "This will not affect the final render" only refers to this particular effect instance. Effects you add yourself will always act both on the preview and the final render.