Hi there. I can't see any problem with your video sorry. Video shown on internet tends not to show the best quality, which may be why you're seeing ghosting effects. Otherwise, if you still see ghosting effects on your computer when you play the video, the camera's Noise Reduction settings may be on...
Go MENU >> Customize >> Custom Presets >> and set NR1 to OFF.

Hope that helps! Otherwise, if you're still experiencing ghosting/motion blur, quicken your shutter speed. 1/120 might not have done very well with the speed of pans you were working with, when following your daughter on the horse.

Just another suggestion, de-interlace your footage before putting it on the internet. It too creates 'ghosting' effects on internet video. De-interlaced video will give you a much cleaner image.

Ask for more help if you need any :D

Ummm - see screenshot please:

flash4shock.com/stop.jpg

There is a white rod (peg) but it looks like not classic motion blur, but like three snaps combined together in one picture. It's not problem of vimeo, but the main footage (i see the same problem in the pure footage). I'm capturing in 50i mode (25p is better?). Mayby shutter speed is low, but i still can't see where is problem :(

Hi Jiri,
In reply on your question about the ghosting you sent me;
I believe it is a problem with the way you render out your video. You shoud deinterlace your footage to resolve that problem when shooting in 50i. No need for deinterlacing when shooting in 25p because thats not interlaced.
you should always deinterlace your footage for playback online or computer. Only for playback on TV you should keep your interlaced footage.
(in my opinion ;)

Hope this will resolve your problem.

Thank you very much. I thought when I render it in Sony Vegas to WMV file, it's automatically de-interlaced. OK, I'll try do something with this.