Sony DSC-HX90V Manual page 69

Self-portrait: If [FINDER/MONITOR] is set to [Viewfinder], the image is displayed in the
viewfinder only.
[49] How to Use
DISP Button (Finder)
Allows you to set the screen display modes that can be selected for the viewfinder using
(Display Setting) in shooting mode.
1. MENU →
[Enter].
The items marked with
Menu item details
Graphic Display:
Shows basic shooting information. Graphically shows the shutter speed and aperture value.
Display All Info.:
Shows recording information.
Using shooting functions
(Custom Settings) → [DISP Button] → [Finder] → desired setting →
are available.
Selecting a screen display mode