PrPro / AME Image rendering
How can I preview my BRAW files in 32 bits ?
Premiere Pro uses 8 bits by default for previewing any files for better performance.Go back to BRAW Studio User Guide / FAQ with all others answers
If you want to preview your files in 32 bits, you need to go to your sequence settings and tick the checkbox "Maximum Bit Depth" under "Video Previews".
Note that this option should decrease your playback performance !