Try Import Assist in the Happy Otter beta.
As an alternative, convert to 24p in Handbrake.
Thanks. Downloaded Handbrake. So is the best setting to change Detelecine to default?
Your source is not telecine (film to TV), so that should be left off.
I think pf24 is stored as 60i, so you would need to experiment with Decomb settings. Leaving decomb=default won't hurt a thing.
At the moment HappyOtterScripts ImportAssist cannot extract 24P from 60i. If you would upload a short sample clip, I will take a look. From what I've read, it should be pretty straightforward.
Don't use PF24, if anything you are losing quality in your image by having to do inverse telecine to get 24 progressive frames out of 60 (which doesn't even divide evenly), so on paper that mode looks to be completely worthless. Buy a camera that can do actual 24p like one of the Panasonic GH series cameras. Edit: Just saw where you said it was accidental.
That said, sometimes Vegas' resampling can create that ghosting effect, see if disabling it in the project settings has any effect. If that doesn't help, I don't know what to tell you.
(accidentally recorded on this setting on my C100 )
Handbrake is doing the trick with the advice Musicvid gave to leave Telecine off and decomb as default. Thanks all!
Glad it is working for you.
Feel free to mark one of the replies as a Solution, if you wish.