How to adjust shutter speed using picamera2 library

[CHEONGYW235]

Hi, I just got a raspberry pi global shutter camera, and I wonder how to I adjust the shutter speed using the picamera2 library? Thanks.

[davidplowman]

Use

picam2.set_controls({'ExposureTime': 10000})

where the value is given in microseconds. It takes a few frames for the value to take effect if you do this while the camera is already running. If you do it just before starting the camera (picam2.start()), then it will take effect immediately.