Hi
I think its highly unlikely that a Canon mk anything will pass through audio, let alone any audio you’d want to use!
Generally on these still cameras with video function tagged on, the audio is the very poor relation both in terms of interface and quality (which is a real shame)
lack of proper audio inputs (not mini jacks) metering, quality pre amps, monitoring – all very poor
You’ll need to look at taking the audio a different way, and then looking closely at sync at they are bound to be miles apart.
Peter
Post Production Dubbing Mixer