Sony ILCA-77M2 - Manual (Page 66)

If you set [Flash control] to [Manual flash], you can adjust the amount of flash manually.
1. MENU
→
(Camera Settings
) → [Power ratio] → desired setting.
MENU item details
1/1 (default value) / 1/2 / 1/4 / 1/8 / 1/16
[58] How to Use Using shooting functions Selecting a screen display mode
Switching the screen display (Shooting)
You can change the display contents on the screen.
1. Press the DISP (Display Setting) button.
Each time you press the DISP button, the recording information display changes as follows:
Graphic Display
→ Display All Info. → No Disp. Info. → Histogram → Level → For viewfinder* →
Graphic Display
Graphic Display
Display All Info.
No Disp. Info.