Output is shaky after exporting an edit of several clips in Premiere Pro I am quite new to video editing, and I am trying to make a clip out of different source footage: 


sources made from my DSLR are at 24FPS 
sources from my video camera are at 24.97FPS
Other sources (video clips) are at 29.97FPS


I wanted to edit those videos and to upload the result. However when I choose the "Vimeo 720p" export preset (29.97FPS), the exported final clip appears to shake from frame to frame, which is annoying.

I wonder whether that could come from the different framerates used throughout the project, and if so, how could I solve the issue?
Maybe your footage are shaky, because you filmed it that way? Try to use effect "Warp Stabilizer".

If it will not work, try to described in detail what you mean by "shake from frame to frame".