Frame-delayed readout makes it possible to make a triggered accumulation and delay the resulting image readout. A trigger pulse will initiate the integration, and an externally applied trigger/signal will start the readout. It can be useful in applications with more cameras triggered at different time and readout at the same time. Or if more cameras are triggered at the same time, and the resulting images are read out in sequence to a single input frame grabber.
The list of cameras that support delayed readout are :