You-tube user mguw published this phenomenal video footage he called "Rotor Panorama" in which he places a key-cam on helicopters rotor head vertically in order to optimize scan direction and fine-tuned the rpm to one round for each frame.
This really is an effect of digital camcorders. They do not record each and every row of pixels at the very same moment. Therefore, when he set the rpm of his helicopter to fit one round per frame of the digital camera, each row of pixels has been saved onto the digital camera sensor just a bit following a prior row.
This really is an effect of digital camcorders. They do not record each and every row of pixels at the very same moment. Therefore, when he set the rpm of his helicopter to fit one round per frame of the digital camera, each row of pixels has been saved onto the digital camera sensor just a bit following a prior row.
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