Has anybody ever used a 5D Mark iii with the Sound Device Pix 240 to record to? Are there any known issues?

sound devices pix 240 | B&H Photo Video (http://www.bhphotovideo.com/c/search?Ntt=sound+devices+pix+240&N=0&InitialSearch=yes&sts=ma)

mkIII output isn't clean. you will have overlays on your video. That's a mkIII issue and the deal killer for external recording with any device. Get a T4i.

Video overlays?

Video overlays?All the information like ISO & shutter speed that appears on the LCD.