嗯,如果你不设定U1,U2的话,不用升级了。 Fixed the following issues: If the mode dial was rotated from P to U1 and then back to P, ISO sensitivity would be set to the value selected for U1. Repeatedly pressing the zoom in and zoom out buttons during movie live view would cause unexpected behavior when 3840x2160; 30p was selected for Frame size/frame rate in the MOVIE SHOOTING MENU