DC-GH5S firmware v1.2

Improvement of AF performance - There were cases where focus point was shifted to the background while tracking the subject in AFC mode. The new firmware minimizes this problem. - There were cases where focus point was shifted to the background while tracking the subject in video recording. The new firmware minimizes this problem. Improvement of stability during HDMI output - Operating stability during VFR(Variable Frame Rate) recording through HDMI output has been improved. Improvement of video recording performance - [One Push AE] failed to operate when [SS/Gain Operation] is set to [ANGLE/ISO] while shooting in Creative Video M mode. This bug has been fixed. - The image quality when using [V-LogL] for VFR recording in Creative Video mode has been improved. - The image quality when set to [i.Dynamic (Intelligent Dynamic Range Control)] has been improved. Improvement of operation under specific lighting conditions (fluorescent lights, etc.) - There were cases where the camera did not catch up to the brightness change smoothly under specfic lighting conditions such as fluorescent lights. The new firmware minimizes this problem.