I am editing a video using CS6. I'm wanting to add a time lapse section of about 10 seconds or so.

When I bring the photos in, they are cropped.  For example, the photos are of a building and sky.  CS6 brings the photos in and has zoomed way in and cropped the building out to show only sky and clouds, so this is not as simple as using the zoom in/out function.  The reverse is also true.  My goal is to start the video with a time-lapse of 10 seconds but when I import the rest of the video clips, they shrink and assume the size of the photos.  How do I change the photos and leave the rest of the video clips alone?  Any help would be awesome.  I am relatively new to CS6 and Adobe so I don't know if this is something that can even be done without upgrading to other programs.