When I attached a Sennheiser MKE400 external Shotgun Microphone designed for noise reduction and DSLR video use, I get a lot of hiss both in Manual and Auto Audio settings on the camera.
I plug the smae microphone in to my Zoom H4N external recorder and it's fine, so something is going on with the Canon 6D I feel but I can't find anyything to fix this, any ideas?
