For what you want to do, the 'Camera Blur' effect (Windows only)
will work much better than Gaussian Blur.
Add the effect to the clip (or to an Adjustment Layer above to the clip),
then use keyframes to change the amount of blur over a specified
period of time.
Camera Blur effect (Windows only)
Adjustment Layers - Pr
Adding, navigating, and setting keyframes - Pr
Thanks very much for your quick reply. You say the Camera Blur effect is only available on Windows, is there a similar effect available for Macs? I could use my PC at home to do the editing but I planned on doing most of the editing in class where we only have Macs available.
Using a mac, you will be stuck with the Gaussian Blur effect.
But, Camera Blur will yield much better results for your need:
"The Camera Blur effect simulates an image leaving
the focal range of the camera, blurring the clip."
If you can do this on a pc instead of mac, it will be worth it.
Create this effected clip on your pc at home, then export a
digital intermediate (DI) file for use on the mac.
I would recommend one of these two free codecs for your DI:
Avid Codecs 2.3.7 - DNxHD
Ut Video Codec Suite
The selected codec will need to be installed on the mac as well
in order to import and edit with your digital intermediate file.
Thanks very much!