Jello

Jello is a visual artifact in FPV footage where straight lines appear to wobble or ripple, most visible on cameras with a rolling shutter sensor. It comes from vibration reaching the camera fast enough that different rows of the image are captured at slightly different positions as the sensor is disturbed.

Common causes include unbalanced propellers, a loose or worn motor, a camera mount that is not properly damped, or a frame with a resonant vibration at certain throttle levels. Because jello is a symptom of vibration rather than a camera fault by itself, fixing it usually means addressing the vibration source rather than the camera.

A useful troubleshooting order is to check propeller balance and condition first, then motor bearings, then the camera mount's dampening, since those are the most frequent culprits in roughly that order. Persistent jello that survives all of these checks can sometimes point to a bent frame arm or a loose flight controller stack.