I would shoot 720p60 if you’re going to NTSC. It gives you the same temporal resolution as 60i, and your software should be able to convert each frame as it’s own field, making for a really great conversion. (The BBC white paper on the EX-1 recommends doing this)
I might also shoot at -3db gain if you’re going to do green-screen work. The less noise you can get in the picture the easier the key.
Also you may just want to set all cameras to time of day time code, that way you can start and stop with them, and still sync them later. Just make sure both cameras are set to the same time obviously. 🙂
John Burkhart
Editor in Chief
Videomaker Magazine