Rolling and Global Shutter

The sCMOS sensor used by the Zyla 5.5 offers a choice of both Rolling and Global shutter, providing superior application flexibility. Rolling and Global shutter modes describe two distinct sequences through which the image may be read off a sCMOS sensor. In rolling shutter, charge is transferred from each row in sequence during readout, whereas in global shutter mode each pixel in the sensor effectively ends the exposure simultaneously. However, lowest noise and fastest frame rates are achieved from rolling shutter mode.

Traditionally, most CMOS sensors offer either one or the other, but very rarely does the user have the choice of both from the same sensor. For the Zyla 5.5, it is possible to select between either readout mode from the same sensor, so the most appropriate mode can be selected for the specific application. The Zyla 4.2 offers rolling shutter only.