I just discovered that if I flip the lever down to .2 and go into the menu system, changing the focus setting in A. AF/MF to MF, the camera reverts to manual focus every time I flip the lever down. It's almost like using a Myset, I think. I've been bothered by the 60mm f2.8 macro not having an L-Fn button to stop autofocus quickly. Being able to revert to manual focus without throwing the current focus position away (as happens with the Pro lens manual ring activation) or taking too long because of diving into the SCP is now a thing of the past. I can easily find and flip the lever down by touch and keep viewing without disturbing my work flow. Does anyone know what other useful settings can also be enabled through this switch apart from the settings covered through the Sequential shooting/Self-timer/HDR button and AF/Metering mode buttons? I can't get it to change metering modes automatically this way, but it's not a big deal, I ride the -/+ exposure dial routinely with my thumb.