But the camera will sometimes hung up when selecting the low ISO by pressing the Direct Print button and requires to reset by removing the battery.
AutoIso probably reacts on light changes too slow (have to pre-focus few times before it sets right speed). It gets current shutter speed value from LCD screen, which updates with delay and sometimes it will increase/decrease in steps. That's why AutoIso so slow. I can't find any better place to get current shutter speed from. Don't have enough knowledge in disassembly. If anybody know good resources about disassembly in arm feel free to send me a link. Thanks.
If anybody know good resources about disassembly in arm feel free to send me a link. Thanks.