Hi All,

This is a firmware addition to the canon firmware. It has several features that help improve video production in the 5Dm2. I have not tried this yet since I have installed the latest firmware 2.0.4 and Magic Lantern has not released a stable version for this version of firmware yet.

http://magiclantern.wikia.com/wiki/M..._Firmware_Wiki

I figure i am going to give it a try once the latest version is released to see if i can improve sound quality with a preamp.

-S