Just to report success on 9kHz PWM flashes resulting in 9000eps frame captured.
The airgun pellet got captured 10 times in this frame had speed 96.9m/s, with 96.9m/s / 9000Hz = 1.077cm between exposures.
Comparing apples with oranges, but multiple exposure really allows for so much higher eps rates than high framerate video capturings:
https://www.raspberrypi.org/forums/view ... 8#p1481286
In side project "ESP32-CAM ov2640 sensor global external shutter"
https://github.com/Hermann-SW/Raspberry ... aWebServer
I can consistently do global external shutter captures, but have not found an explanation why this works because that mode is not triggered explicitely as with Raspberry v1 camera. Yesterday I was even able to do multiple exposure (5×) at daylight after removing the covering cardboard box providing the darkness:
https://www.esp32.com/viewtopic.php?f=1 ... 229#p46229
This is "normal" frame captured with that camera showing extreme rolling shutter effect for similar scene: