Randall Lewis
Active member
I'm a G2 owner who loves his camera and has not yet suffered any of the issues that some have reported here, but nevertheless I was also interested in Canon's new G3 model. Very little has been written about the wheel on the front of the camera in the enlarged grip. I've read that this is called the Main Switch and is similar to a feature in some SLR's. Not having an SLR, that doesn't tell me much. What is the advantage of this wheel? What does it do? Is adding it to the G3 a big deal? Thanks for any info any of you can provide.