When looking through the viewfinder like old mirror machines, the LCD viewfinder will be activated. In this way, when the machine is not active, no LCD will work, just like the old mirror machines. I want to express in the present time use is either rear lcd active or viewfinder lcd active, let's use this activity like a prism viewfinder like a pro and get active when I bring our eyes closer to the viewfinder, and when we take a photo, the rear lcd will also show, except that the rear lcd does not work.