Aperture 3 and CS4

One of the first tasks is to set up your CS4 apps in Aperture’s preferences. Hit the old "Command-," or go to the Aperture menu and select Preferences. Under the "Export" tab you will see a couple new options. Of course there is the old "External Photo Editor" which you can set to Photoshop CS4 or any other editor of your choice. Newley added below this is the spot for External Audio and Video Editors. As you can see here I have selected Adobe Soundbooth and Premiere.

Before attempting to export a video to your video editing software of choice be sure that it’s opened. This is required with apps like Adobe Premiere or After Effects where the software will ask you to set up or open a project.

I decided to try exporting a video file from my Canon 5D to Adobe Premiere. Simply Command-click the movie file in Aperture and select "Edit in Adobe Premiere." Aperture will create a duplicate copy of your movie file at this point. It will then send this new file to Premiere, and it should show up in your Premiere project.

Of course apps like Adobe Premiere and After Effects will treat these files as referenced files. This means that any changes won’t appear back in Aperture.