A television camera having solid-state imagers has a motor- driven shutter disc for reducing highlight smear during the pull-down transfer interval. The shutter disc diameter is reduced to minimize stored energy and synchronization time. Because of the small shutter diameter, the drive motor is near the imagers. Low-level noise at the shutter rotational rate is coupled to the imagers, and is rendered visible because it is coherent with the field rate. The noise is reduced by means of an ungrounded conductive shield surrounding the motor. Noise is reduced by placing imager contributing the greatest luminance component furthest from the motor.
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