5D2 droping frames while recording..
 

Anyone hear about this? Sulka's Game - 5D mark II drops frames when recording video

A couple thoughts...

1) I wonder if particular lenses' aperture changing response times are different. I definitely heard one of my lenses laboring as I was using it yesterday (a lovely little Tamron 90mm 1:1 macro).

2) All the more reason to always use the '*' button to lock down the aperture

3) CF card speed issue?

Well if the drop in frame consistently coincides with aperture changes, then it's a problem with the aperture change and not a CF card issue. I will be able to test this on mine tonight..