I agree with Mr. Bogie on this one.
Use a digital SLR, then just import the still frames in a sequence.
Another advantage to this approach over the “live camera to FCP”, is the resolution of your basic cheap digital camera is approx 5-10 times that of even HD! Therefore, you can reframe or do moves in post that would be impossible if you brought in the “live image” at even HD resolution.
I’ve done a fair amount of “time lapse” photography using this workflow and the results are astounding, considering how cheap the cameras are compared to a true HD motion camera.
Mark