I didn't see a RED section so I'm posting here.

I shot some RED Epic footage recently and exported using redcine-x pro to a 1920 x 1080 ProRes 4444 QT file.

When I drop the footage into a new FCP7 timeline it asks if I want to change the sequence settings to match the clip settings. I say yes to this, and everything looks fine except there are small black bars on the top and bottom. Do I need to change the aspect ratio? How do I get it to fill the window correctly with no black bars?

Aspect Ratio says "HDTV 1080i (16:9)
Pixel Aspect Ratio says "Square"

This will be because the red footage wasn't shot 16:9, but likely 2:1 or some other aspect ratio. What is your delivery, if it is 16:9 then you will be best to just blow up the footage and crop the sides or leave it with letterbox. You may be better of not changin the sequence settings to match the 2:1 aspect ratio because you will lose Final Cut's realtime acceleration while editing.

Thanks for the reply.

So, when you say blow up the footage, you mean I should zoom in on it to fit the 16:9 frame? I guess being that it is 5K footage it wont surfer from zooming in a bit.

Is there a way I can export using the correct aspect in compressor if I don't want letterbox?