Cinema P3 Camera has 3 Exposure Modes: Center, Spot and Manual.
These are available for both Photo and Video capture.
The Camera Settings Menu has the title Camera Settings as displayed in the screenshot below. If the Camera Settings is not displayed, tap the Tools Button in the Top Toolbar to display Camera Settings.
The current Exposure mode is indicated by the highlighted option in the Exposure Mode section. There are 3 options:
Tapping on the Exposure Spot will lock the current exposure setting, preventing automatic updates being made.
The locked mode is indicated by yellow coloring and a lock icon.
Tap the Exposure Spot to toggle locked/automatic modes.
In Photo Mode, the Shutter Speed Control is used to adjust Shutter Speed.
Tap on the SS button to display the Shutter Speed Control.
Drag the Shutter Speed Control vertically to increase or decrease the shutter speed.
In Video Mode, the Shutter Speed is set by adjusting the Shutter Angle.
Tap on the SS button to display the Shutter Angle Control.
Drag the Shutter Speed Control vertically to increase or decrease the Shutter Angle.
The Shutter Speed is calculated and set as the Shutter Angle is adjusted.
For cinematic video, a Shutter Angle of 180 degrees is desirable. This sets a Shutter Speed to be twice the video frame rate and produces pleasant motion blur.
Shutter Speed and Shutter Angle are displayed in the Camera Settings HUD.