The limiting factor here is likely image quality (the live view image is not that good, especially if there's not enough light).
So I must take a different approach. Because I can almost always accurately measure the distance between the camera and my subject matter, I intend to equate the possible range of set_focus distances (576 to 65535 on the G9 at full telephoto) to actual distances.
Started by nirschi
General Discussion and Assistance
Started by madcat
Hello, I'm a NEWBIE - HELP!! (Newbies assistance, User Guides and thank you notes)
Started by sur.cryptic
Started by Nomad57
General Help and Assistance on using CHDK stable releases
Started by yvesson
Creative Uses of CHDK