WHAT EXACTLY IS GOPRO CAMERA JELLO (Wobble) & HOW DO I STOP IT!?
"What exactly is jello on a DJI Phantom or GoPRo and how do I stop the picture vibration?" - Thanks Mark W - CA
The JELLO EFFECT is really just wobble! But its created because of the new technology scanning methods of cameras . This phenomenon is most extreme in cases when a camera is vibrating. ROLLING SHUTTER is a method of image acquisition in which each frame on a camera is recorded not from a single shot (or frame) , but rather by scanning across the frame either vertically or horizontally.
In other words, not all parts of the image are recorded at exactly the same time, even though the whole frame is displayed at the same time during playback. This produces unpredictable distortions of fast-moving objects or when the sensor captures rapid flashes of light.
This effect is found on practically all SLRs use a rolling shutter at higher shutter speeds, as well as digital still and video cameras using CMOS sensors. We find the effect on the Phantom & GoPros is most noticeable when harmonic resonance is reached or when extreme conditions of motion are underway. CCDs (charge-coupled devices) are alternatives to CMOS sensors. CCDs utilize what is referred to as global shutters, which take a snapshot representing a single point of time and therefore do not suffer from these motion artefacts. The effects of a rolling shutter can prove tricky for filming at times. Even just wind conditions can change the Jello effect. Final results depend on the readout speed of the sensor and the nature of the scenes being filmed, as a rule of thumb, higher end cinema cameras will have faster readout speeds and therefore milder rolling shutter artefacts than low end cameras. See our video segment on REDUCING VIBRATIONS
