Does Vegas lose quality when zoomed panned

[Anonymous]

I am making film from video and stills shot on a DSLR in Vegas Pro. I want the still image to have the zoom/pan called Ken Burns effect.
My question is does Vegas lose quality when zoomed as discussed here http://www.dpreview.com/forums/thread/3540763

The stills are highest quality jpegs available from the camera. About 6Mb per file

[smrpix]

Vegas links to your original stills. How much you zoom in, your timeline settings and your export settings are all possible places where quality may be compromised -- but Vegas does not degrade them on the way in.

Also, file size doesn't mean very much, resolution (dimensions) is what's important.

[JVRaines]

Vegas will use all the available resolution if you zoom in with the Pan/Crop control and "Stretch to frame" = true. Don't use the Track Motion control.

[Anonymous]

Vegas will use all the available resolution if you zoom in with the Pan/Crop control and "Stretch to frame" = true. Don't use the Track Motion control.

found that after posting here. Thanks

[Anonymous]

Vegas links to your original stills. How much you zoom in, your timeline settings and your export settings are all possible places where quality may be compromised -- but Vegas does not degrade them on the way in.

Also, file size doesn't mean very much, resolution (dimensions) is what's important.

thanks