Sony DSC-RX100M4 Instruction Manual page 211

When using an electronic viewfinder, this product adjusts the brightness of the electronic
viewfinder according to the surrounding environment.
1. MENU →
Menu item details
Auto:
Adjusts the brightness of the electronic viewfinder automatically.
Manual:
Selects the brightness of the electronic viewfinder from the range –2 to +2.
Note
When you use the AC adaptor AC-UD10 (sold separately) when the setting is [Auto], the
viewfinder is always set to the brightest setting.
The electronic viewfinder brightness cannot be adjusted when the [
[XAVC S 4K], or when [
[120p]/[100p]. The maximum brightness will be [±0].
You cannot use the viewfinder while using Wi-Fi functions. The camera will switch to
screen display mode.
[171] How to Use
Finder Color Temp.
Adjusts the color temperature of the electronic viewfinder.
1. MENU →
Menu item details
-2 to +2:
When you select "-," the viewfinder screen changes to a warmer color, and when you select
"+," it changes to a colder color.
[172] How to Use
Function for VF close
(Setup) → [Viewfinder Bright.] → desired setting.
File Format] is [XAVC S HD] and the [
Changing settings
(Setup) → [Finder Color Temp.] → desired setting.
Changing settings
Setup menu
Setup menu
File Format] is
Record Setting] is