Have a H with the CGO3 + camera and just of late I've noticed the in the center of a photo or video it's not as focus has it is on the left and right of the frame. I thought at first I just had some dirt or something on the lens, but after cleaning and checking this under a mag. glass couldn't find anything. It's very little out of focus, but enough that I notice it. Anybody else or is it just me?