Timelapse clouds

[Adam Lewis]

Aloha
I done my first timelapse yesterday of some clouds, composition wasn't a problem, we've got some DARK trees that birds are nested through like nothing on earth, with a nice skyscape going on..
Anyway, I only have access to imovie 09 (girlfriends laptop) and my video ended up a tad jumpy which can be expected due to iMovies 10fps limit for stills.
So how could I make it more fluid?
My setup was 1/60 at intervals of 3 seconds for 30 mins roughly - ended up with 690 stills

I thought a slower shutter speed might smooth it a bit with blurring, but would I not wash out the clouds? And if not what speed would be better? (I have an nd2 too if that's any use?)
Or if a slower speed wouldn't cut it, would 2 second intervals be better? - and more so, would my camera buffer in time? If buffer is the word of course lol

Thanks

 

[Hamish Gill]

I'm no expert ... Half way down the page - an attempt by me with settings used http://www.realphotographersforum.com/digital-cameras/6960-diary-nikon-d800-user-2.html

 

[Adam Lewis]

Ill watch the vid in a bit (I'm on 3G ATM) however with yours, you've got 24fps , whereas I'm limited to only 10fps with imovie. Meaning I need to drag out the stills. I attempted to get each still showing for 0.067 seconds, giving a rough 15-16 or so fps, but when I apply it, imovie doesn't agree and make it 0.1 seconds.
Unless.. (Thinking as I type here), I could import the movie back again and speed it up as a video, and speed up 220% to give a rough 23-24 fps from the top of my head?
Hmm. That's the plan for later.