FPS drop in low light even with manual focus?

[Hjones]

This FPS slow-down in low light conditions is due to Canon's iFCL metering which is in the 7D, 60D, 70D, 5D Mk III and probably all other newer Canon cameras. http://cpn.canon-europe.com/content/...CL_metering.do

To avoid this slowdown in low light, use the * button to lock the exposure if you are shooting in Tv, Av or P modes, or use LiveView and this will bypass the iFCL metering. In Manual mode you must use LiveView.

Thanks for the info! I figured it had to do with the metering system. I doubt it'll ever become an issue, but I definitely learned something new about my camera nevertheless, which is a big plus. I never really knew the specifics of the iFCL metering system either, so that was a helpful read.