Locking ISO setting on G1x
I seem to push or nudge the ISO button on the control dial on the back of the camera when I use the camera. If i've set it on Auto ISO, it routinely gets turned counterclockwise 1 setting from Auto to 12,800. This has ruined many an image. Is there a way with the Custom Modes or other way to lock the rear wheel so it won't change settings if it gets accidentally moved?