Technically, Adobe Premiere supports a huge range of formats without any plugins in usual, but when bring Canon C300 footage into Adobe Premiere Pro CC, there are still some obstacles.If the problem still existed, it’s possible that Premiere Pro CC is not compatible with the specs of the Panasonic/Sony/Canon MXF footage. I recommend MXF Video Converter for Mac to assist you to transcode MXF to MPEG-2 which is the most suitable format for Premiere Pro CC. Besides, this App supports for doing some editing work with MXF files. In addition, the most amazing feature about this App is that it supports 8 multi-track output formats, Multi-track MKV, Multi-track MP4, and Multi-track MOV and 5 multi-track MOV output formats with Apple Prores codecs for FCP. The Apple prores codec output is only available in Mac version, not for Windows version.

How to Import MXF Files into Premiere Pro CS6/CC 2105?
Step 1: Import MXF files into the MXF Video Converter.
Start and open the program on your computer, from “File” menu drop-down options, select “Add Video/Audio” or “Add from folder” to import your source camera files to the computer.

Step 2: Specify output file format.
Click “Format” drop-down bar, from its extended list, select “Adobe Premiere/Son…” > “MPEG-2 (*.mpg)” as the preset output file format or premiere pro CS6/CC 2015.

Step 3: Trim/Merge/Split MPEG-2 files.
Trim video length: Open “Video Editor” window and switch to the “Trim” tab, you can drag the slider bars to include the segment you want to remain, click the left square bracket to set start point, and click the right square bracket to set end point when previewing the video or directly input specific values to “Start” and “End” box.

Step 4: Begin the conversion process.
Go back to the main interface, tap the right-bottom “Convert” button to start MXF to Adobe Premiere Pro CS6/CC 2015 conversion process.

When the conversion is completed, import converted media files to Premiere Pro CC for further professional post-production with no limitation.