When capturing videos, framerate unit is fps (frames per second).
Characterising multiple exposure frames, the unit is eps (exposures per second).
airsoft pistol multiple exposure frame
2MP, 8.33µs duration flashes at 3KHz frequency, 36.3m/s pellet speed, 3000eps:
airgun multiple exposure frame
2MP, 8.33µs duration flashes at 3KHz frequency, 109.2m/s pellet speed, 3000eps:
airgun multiple exposure frame
0.3MP, 9KHz frequency 8.33µs duration flashes, 96.9m/s pellet speed, 1.07cm between pellet exposures, 9000eps:
Previous frame lens distortion correted with OpenCV:
airsoft pistol multiple exposure frame
Flying pellet spins fast, 93.75rps or 5625rpm (see blue dot on pellet).
2MP, 9µs duration flashes at 6KHz frequency, 36.3m/s pellet speed, 6000eps:
airsoft pistol 3pellets multiple exposure frame
The frame shows 3 pellets shot together by airsoft pistol. 300Hz frequency with 9µs long flashes was used. The left 3 pellets belong to one exposure, and the right three pellets to the next exposure:
Animation created from full and empty frame, 5000fps framerate, played at 5fps, 1000× slower than real:
camera software panning allows to simulate really fast real camera panning in post processing.
From 2500eps frame, full rotation in 5 frames, that is 500rps or 30,000rpm spinning of pellet:
