Aaah, well actually the T1i does both 720p @ 30fps and 1080p @20fps, D90 only do 720p @ 24fps.
Reread my second post. I completely understand the Canon offers both rates. My point was the 1080p at 20fps is senseless. You can deal with the "wobble" on either camera by working creatively but there is nothing you can do to make up for the fact that the video is shot at 20fps in 1080. It will be noticeable no matter what you do to it. Well, I suppose you could try to interpolate frames in post process but that would be a tremendous task.
Then there is another issue bout the 24fps, I know video tech ppl will say it better but frankly speaking, to the eye of a customer, does it matter? Will they be able to see the difference?
I can definitely see the difference, and whether or not most people can see the difference it is one of the factors which makes "film" footage look like film footage. Movies are shot 24fps. Television is shot ~30fps. It is a subconscious aesthetic at the very least which lends to the "film experience". There are companies who shoot on video (~30fps) because it is cheaper than shooting film, and then pay tens of thousands of dollars to have it transferred by 5:4 pulldown to a 24fps "look" because that look is that important.
If you have the opportunity to see one of the 120hz or higher refresh flat screen TVs out there, watch a hi def film on one. It is still 24fps but the refresh makes it look bizarrely smooth and clear in a television soap opera way, losing the"film" aesthetic. I saw Dark Knight on one of these and it was disturbingly weird. It was a Hollywood production with Hollywood production values that somehow looked like a cheap daily soap at the same time.
I can definitely tell the difference and frankly so could the consumers also watching that set, and I prefer 24fps without a doubt, but to each their own.
As a side note, I will be taking a D90 to Glacier National Park with me in June for photos. I will try to take some footage as well and post when I get the time.
All the best
Jesse Widener
Art and Structure