Hi All

Im needing a little help and I will try to explain myself as best I can.
So I have several bits of footage from a wedding that get choppy/jerky when ever I move the camera significantly, for instance when tilting slowly up the wedding cake and also when zooming in on a jpeg. its like its skipping a frame and makes everything look jerky.

I can see it in vegas but at the time thought it was just the preview lagging a little, but it has also come out in the render. I tried moveing the original copy from my old drive to my system ssd drive but this didnt help.
I should add that it is the same with GPU acceleration on and off
The footage is AVCHD 1080/25p

Edit: Perhaps this isnt dropped framed as I read that when it drops a frame it leaves a black one in its place I have been through a bit of effected footage frame by frame and cant see a black one.

Edit 2: Just to make sure I remade the jpeg zoom clip in after effects and dropped it in replacing the one I did in vegas its fine in after effects but as soon as I drop it in vegas I get the same choppy jerky zoom.

system spec is

Vegas pro 13
i1-4770K @3.5ghz
16 gb ram

Radion 6850 hd

Any ideas guys

Matt