部分正確
From the moment you press the shutter button in Night Sight mode, the camera captures a series of frames in quick succession. The number of frames captured really depends on the amount of available light and whether you're using the phone handheld or on a tripod. It could be anywhere from 6 to 15 frames.
The Pixel 3 and the Pixel 2 have the advantage of being able to handle
longer exposures per frame, since they have optical stabilisation (OIS) to compensate for shakes, but the original Pixel resorts to shorter exposures since it lacks OIS.
https://gadgets.ndtv.com/apps/features/google-night-sight-download-apk-camera-app-pixel-2-3-samples-1947373